Real laughter doesn't hold. You get about three seconds before it fades into a performance of laughter. Here's how to be ready before it happens.
This is one of those things that separates photographers who consistently get genuine expressions from photographers who spend the whole session chasing them. It's not reaction speed. It's preparation.
Think about how a genuine laugh works. Something unexpected happens or someone says something funny or absurd and the person reacts before they can think about reacting. Their whole face changes at once. Their eyes go first, then everything else follows. That window, the one where the expression is completely real and unmanaged, lasts about three seconds. Maybe a little more if they're really gone. Then the self-awareness creeps back in and they start laughing at themselves laughing and it becomes a performance.
A photographer who waits for that moment to start preparing is going to miss it. You have to be ready before it shows up.
That means a few things practically. Your camera settings are already dialed in for the light you're working in. Your subject is already positioned where the light is good. You already know your focal length and your depth of field and your shutter speed is fast enough to freeze movement. All of that is handled before you start trying to create the moment. Because when the moment comes, there's no time to adjust anything.
Then you create conditions. You don't wait for something funny to randomly happen. You make something happen. Tell them to whisper the most embarrassing thing that happened to them this week. Tell them to say something to their mom without telling you what it is. Ask them a question they can't answer with a straight face. Have them walk toward you and talk at the same time. Movement plus conversation is one of the most reliable ways to get a genuine expression because the brain can't fully manage both at once and something real leaks through.
For seniors, one of my reliable moves is asking them to describe their best friend in three words like the friend is standing right there. They almost always laugh because they're immediately thinking of something specific and real and it shows on their face before they can decide whether to show it.
For families, the whisper trick is gold. Tell one person to whisper something to another person and shoot the reaction of the person hearing it. You have no control over what they say, which means the reaction is completely genuine, which means the photo is completely genuine.
Three seconds. That's the window. But the three seconds is just the payoff. Everything before it is the preparation. Get prepared first and the three seconds takes care of itself.
This is the kind of thing I'm thinking about every session. If you're in the Fort Worth, Springtown, or Azle area and you want portraits where the expressions are actually real, let's set something up.