Are we laughing together—or just laughing along?

Imagine I make a joke after correcting a player. Most of the group laughs. I could take that as a sign that I handled the moment well. Perhaps I did. But the laughter cannot tell me whether the player felt included, whether the correction was understood, or whether somebody laughed because that was the easiest way to move the session along.

The same trap appears in coach education. I make a room laugh and feel the session loosen. Good. Humour can help people connect. But laughter at my joke is not evidence that the coaches agree with the point, understand it or feel able to challenge it. It may simply mean I made them laugh. A useful skill, but not an assessment method.

A 2026 review by Fausto Caruana and Sophie Scott helped me separate two things I had been bundling together. The authors examine evidence for a dual system of laughter. One network is linked with spontaneous, emotionally driven laughter. Another draws on brain systems involved in producing speech and supports voluntary, conversational laughter—the kind people can use deliberately while interacting.[1]

Voluntary does not mean dishonest. Conversational laughter can be a real social act: joining a moment, responding to someone or helping an interaction move. The point is that the sound can have more than one route and more than one job. I cannot hear a laugh and work backwards with confidence to one private feeling.

The paper is a neuroscience review, not a study of a volleyball team or a coaching course. Much of the evidence comes from behavioural and clinical research, intracranial recordings and direct electrical stimulation. The authors also note a basic difficulty: spontaneous laughter is hard to reproduce in a laboratory. The review does not show that humour improves performance, and it cannot tell me why one particular person laughed.

That limitation is useful. It stops me borrowing a brain scan to explain somebody I have not actually asked.

I do not want coaches to become humourless inspectors, staring suspiciously at every smile. A shared laugh can be warm, generous and exactly what a tense room needs. I want to enjoy it without asking it to prove more than it does.

What happens immediately afterwards may tell me more about the room. Who resumes speaking? Does the person who was corrected get to finish? Does an unfinished question return, or has the laugh neatly buried it? These are observations. They still do not reveal anyone's motive, but they give me something more concrete than my own satisfaction.

As a leader, I can also notice where the joke points. If it makes my own certainty the target, the room may gain space. If it turns a player, a junior coach or the person who disagreed into the entertainment, the room may become very easy for me and rather expensive for them.

I can keep the humour. I just need to leave the conversation open when the laughter stops.