Neal Brennan: "When you laugh, you're more likable."
"You're having more of a conversation with them. You're in the moment with them."
Neal Brennan gave an interview where he talked about how smiling and laughing onstage can help make a comic more likable:
I focus on performance. And being more dynamic as a performer. I used to do a thing, and I did it on my Lopez set, where when I was going onstage, I would give a friend of mine 200 bucks and for every time I smile onstage, you have to give me 20 bucks back. So I knew that if I wanted to get my money back, I would have to smile onstage.
It's like one of these things that's such a good practice. Because the first time I did it, I lost 120 bucks. But when I did it on Lopez, Lopez is easier, I did it and smiling helps. And I got my money back.So I do that, and I've been doing something recently where I watch the audience laughing, which I never did before. Laughing at my jokes, which makes you then laugh, and when you laugh, you're more likable, and you're having more of a conversation with them. You're in the moment with them. Instead of just, "I am performing, we're having 2 totally different experiences now. You're having fun, but I'm working." No, it's like, "We're both having fun." So that's one thing.
This is a fun perspective. I’ve only ever heard that laughing at your own jokes on stage is gauche. I like this POV better.