# How to Laugh on Cue (So It Sounds Real) > Why a fake laugh sounds fake (it is the breath, not the voice), how to build a laugh from your body and from what your scene partner gives you, how to keep it alive take after take, and how to protect your voice over a long run. - URL: https://www.offbook.com/blog/how-to-laugh-on-cue - Published: 2026-10-22 - Last updated: 2026-10-22 The sides say *(laughs)*. Two words in brackets, and suddenly the easiest thing you do every day feels impossible. You try it in the kitchen and hear a sound you have never made in your life: three tidy notes, *ha, ha, ha*, like someone reading the word aloud. Everyone in the room will hear it too. Most people can't say why a fake laugh is fake, but they know one when they hear it, and the moment it lands wrong, the scene stops being about your character and starts being about you. The short version: don't try to make the sound of a laugh. Make the breath of one, from the belly, and give it a reason that comes from the other person in the scene. Fix the trigger and the shape, and let the exact sound change every time instead of fixing one recording. And protect your voice, because a laugh you do fifty times has to be one you can afford fifty times. ## Why a fake laugh sounds fake A real laugh is not a voice doing something funny. It is a body losing control of its breath. UCL professor Sophie Scott, who studies the neuroscience of laughter, told The Naked Scientists that real laughter comes from [strong pressure in your rib cage](https://www.thenakedscientists.com/articles/questions/fake-laughter-different-real-laughter), forcing the air out in a way that makes sounds you don't make any other way. That is exactly what a cued laugh leaves out. When you decide to laugh, you produce the voice and skip the squeeze. A summary of Scott's work in Science in School notes that the forces behind involuntary laughter are [extremely hard to produce voluntarily](https://scienceinschool.org/article/2015/learning-laughter/). The same piece makes a point actors should hold on to: a posed laugh is not necessarily just a weaker version of a real one; it has its own markers, and it still does useful social work. Listeners notice the difference. In the same interview, Scott says the brain tells real and posed laughter apart, and that a posed laugh sets the listener wondering about the laugher's motives. That is why a fake laugh feels slightly suspicious on stage. The audience starts asking why your character is pretending. The psychologist Robert Provine, who spent years studying laughter, put it bluntly: ["Laughter isn't under our conscious control."](https://www.webmd.com/men/features/why-we-laugh) So the job is not to command it. The job is to set up the conditions where something close to it happens, and then shape what comes out. ## Start with the breath, not the voice Since the real thing starts below the ribs, so should yours. Casting Frontier's tips for [laughing on cue](https://castingfrontier.com/tips-laugh-cue/) start with the body: lift your brows, then smile, and when you add sound, push breath from the belly. Practice in a mirror so you can see the results and adjust. Try this tonight, standing up: 1. Put a hand on your stomach, just below your ribs, and breathe in low. 2. Push the air out in short, silent pulses, like a dog panting. Feel your hand bounce. 3. Add a smile and lift your brows, and keep the pulses going. 4. Now let a little voice ride on the pulses. Don't choose a sound; let whatever happens happen, a snort or a squeak included. 5. Let the pulses get bigger, then let them run out, and take the gasp of air your body asks for at the end. That last breath matters. People forget it, and it is one of the most convincing parts of a laugh: the moment the body has run out of air and has to catch up. Done a few times, this exercise can tip into real laughter, simply because you feel ridiculous. Good. Notice what that sounded like. ## Give the laugh a reason, and a person We tend to think laughter follows jokes. Mostly it doesn't. When Provine studied 1,200 laugh episodes, he found that only [10% to 20% followed anything resembling a joke](https://www.webmd.com/men/features/why-we-laugh). The rest followed ordinary remarks, like *I'll see you guys later*. In scenes, that ordinary laughter tends to carry something else: relief, nerves, flirting, embarrassment, agreement, getting away with something. He also found that we laugh about 30 times as much with other people as alone. Laughter is mostly social. It is something we do *to* someone. That is useful for an actor, because it turns a vague direction into a playable one. Ask: who is this laugh for, and what is it trying to do to them? Ibsen gives a perfect example in *A Doll's House*. Nora has just learned that Krogstad, the man she secretly owes money to, works at the bank her husband is about to run. Dr. Rank is lecturing about society. Nora isn't listening: > **RANK.** *[shrugging his shoulders]*. Yes, there you are. That is the sentiment that is turning Society into a sick-house. > > *[NORA, who has been absorbed in her thoughts, breaks out into smothered laughter and claps her hands.]* > > **RANK.** Why do you laugh at that? Have you any notion what Society really is? > > **NORA.** What do I care about tiresome Society? I am laughing at something quite different, something extremely amusing. > > *Henrik Ibsen, A Doll's House, Act 1, translated by R. Farquharson Sharp ([Project Gutenberg](https://www.gutenberg.org/ebooks/2542))* Nothing in the scene is funny. Nora laughs because she has just realized her husband now has power over Krogstad, and because she is in a room where she can't say why. The laugh is **smothered**, which tells you it is fighting to stay in. Play the thought, and play the effort to hide it, and the sound takes care of itself. To rehearse more of the play, our [A Doll's House page](https://www.offbook.com/plays/a-dolls-house) has scenes you can run. ## Laugh at your partner, not at the line Laughter is also contagious. BrainFacts, summarizing Provine's work, notes that laughter's automatic quality is ["most striking"](https://www.brainfacts.org/brain-anatomy-and-function/body-systems/2019/finding-the-truth-behind-funny-041119) when we laugh just because we hear someone else laugh. Use it. If the other character says something that sets you off, the real trigger is in front of you, every take: their face, their timing, the thing they are trying to get away with. Casting Frontier's improv advice points the same way: respond to what you are given. In practice, that means you stop preparing the laugh in the line before. Listen to your partner as if you haven't heard the line, and let the laugh start where something lands for your character. Our guide on [how to react in a scene](https://www.offbook.com/blog/how-to-react-in-a-scene) covers that kind of listening in detail. ### Laughing through a line The same BrainFacts summary notes that laughter tends to fall between phrases rather than in the middle of them, as if speech and laughter compete and speech usually wins. That is a handy rule for a line the script wants you to laugh through. Don't smear laughter over every word. Laugh into the line, let the words win for a phrase, and let the laugh break back in at a natural pause. ## Never make the same sound twice The giveaway in most cued laughs is how regular they are: even beats, one pitch, same length every time. Real laughter is messy. The researchers Jo-Anne Bachorowski and Michael Owren describe laughter as a highly variable signal, and found that one person [produces many different laugh sounds](https://acoustics.org/pressroom/httpdocs/138th/bachorow.htm), even within a single laugh. Some are voiced, with a clear pitch; others are noisier pants and cackles. So don't rehearse a laugh. Rehearse a *shape*: how it starts (a breath, a snort, a look away), how it peaks, and how your character recovers. The recovery is often the most truthful part, and the easiest to repeat: getting your breath back, wiping an eye, trying to get the next sentence out. Fix the trigger and the shape, and leave the sound free. - A nervous laugh is often short, high, and cut off, because the character is checking how it went down. - A laugh to win someone over leans toward them and holds eye contact. - A laugh at someone's expense often starts as breath through the nose and gets bigger when they react. - A laugh the character is fighting, like Nora's, stays in the chest and leaks out of the corners. ## Take after take, night after night A laugh that works once has to work for the master, the coverage, and the pickups, or for eight shows a week. Two things wear out: the trigger and your voice. Triggers go stale. Casting Frontier suggests keeping a few funny memories and [rotating them](https://castingfrontier.com/tips-laugh-cue/) so they keep working. Better still, keep finding new things in your partner; they change a little every take, and noticing that change is what keeps the scene alive. Our guide on [keeping a performance fresh over a long run](https://www.offbook.com/blog/keep-performance-fresh-long-run) has more ways to stay out of autopilot. Your voice is the other risk. A big laugh drives a lot of air through your voice, and you may do it hundreds of times. The vocal-health guide from Baldwin Wallace's conservatory says a voice [can be stretched but not pushed](https://www.bw.edu/Assets/conservatory/wellness/vocal-health-singers-actors.pdf), and that you stop as soon as you feel strain. It also calls for a full vocal warm-up before you go on, and plenty of water. In practice: - Let the breath from your belly do the work rather than squeezing sound out of your throat. - Keep big laughs short and let the recovery carry the rest of the moment. - Do a real warm-up before a day with lots of takes. Our [actor warm-up routine](https://www.offbook.com/blog/actor-warm-up-routine) is a good start. - Keep water near you on set and between scenes. - If it scratches or hurts, stop and tell the director; a lighter laugh you can repeat beats one that costs you tomorrow's voice. ## Rehearse the moment, not just the laugh The laugh lives inside a scene, so practice it there. Learn the lines around it so well that you aren't reaching for words, because a laugh needs all your attention on the other person. Our [free first-letter tool](https://www.offbook.com/tools/first-letter-memorizer) is a quick way to test yourself on a speech. Then run the exchange that leads into the laugh, out loud, over and over. You can do that on your own with Offbook: upload the sides, pick your role, and realistic voices read every other character while Offbook listens and plays the next cue when you finish your line. Turn on scene looping and the scene restarts on its own, so you can test different triggers and shapes until you find the one to keep. Video: [Practice controls](https://www.offbook.com/learn/practice-controls) (1:06) Record a few runs on your phone and listen back with your eyes closed. You'll hear quickly which laughs sound like a person and which sound like a person reading *(laughs)*. Keep the shapes that work, drop the rest, and walk in with a laugh you can find again. One last distinction. This guide is about your character's laugh. When the audience is the one laughing and you have to wait for them, that is a different skill: see [how to hold for a laugh](https://www.offbook.com/blog/how-to-hold-for-a-laugh). And if the scene asks for the opposite, our guide to [crying on cue](https://www.offbook.com/blog/how-to-cry-on-cue) uses the same idea: play the reason, not the result. ## Questions actors ask ### Can you learn to laugh on cue if you don't laugh easily? Yes. A cued laugh is a skill, not a personality trait. Practice the breath pulses until they feel normal, then attach them to a specific reason in the scene. ### What if I start really laughing and can't stop? It happens to a lot of actors, and it's called corpsing. Shift your focus from the funny thing to something concrete and dull, like what your character wants next, and take a slow, low breath. In rehearsal, it usually passes once the moment stops being new. On camera, finish the line if you can; the take may still be usable. Our guide on [how to stop corpsing](https://www.offbook.com/blog/how-to-stop-corpsing) has more ways to keep a straight face. ### How do I laugh in a self-tape when the reader is flat? Give the laugh a reason that doesn't depend on the reader's delivery: what your character just understood, or what they are covering. Keep it smaller than on stage, since the camera is close, and let the recovery show on your face. ### Should my laugh be the same every performance? The trigger and the shape can stay the same, and the director may need the timing to be consistent. The exact sound shouldn't be locked. Real laughs vary from one moment to the next, and a laugh that changes slightly each night keeps sounding alive.