Business communicators often treat humor like a condiment, meaning they use it sparingly, if at all. But what if humor is more like a catalyst?
In a recent neuroscience study, I recorded brain activity during sales conversations, asking a simple question: Should you use humor in meetings with buyers? One of the metrics we compute—ISC, or Intersubject Correlation—shows how synchronized buyers are within a specific group (in this case, it was humor/no humor). Why does that matter? Because brain synchrony is a reliable marker of connection, collaboration, and shared understanding—everything sellers want to achieve as they talk to buying groups, not just to one person.
What I found was that when sellers used humor, buyers’ brains lit up—not just with interest, but in sync. The conversations that included humor created statistically significant higher ISC scores.
But not all humor works the same. Out of the various types (fun, benevolent, nonsense, sarcasm, irony, satire, even cynicism), the winner was wit. Clever, timely, respectful wit. The kind that makes you feel seen, not sold to.
So maybe the question isn’t whether you should use humor—but what kind of humor makes you more memorable and keeps your buyers on the same wavelength, literally?