Yes, I truly do. I have a lot of nervous energy, I move in a fidgety way, and the more energized I get, the wackier I move. I'll be telling a story, and as I start getting laughs, my body language becomes more and more animated and dramatic. My speech also becomes rapid and colourful as well. My manager once half-jokingly told me that I "abuse inflection". People often have to tell me to slow down or to stop bouncing/fidgeting/whatever. When I have an audience, and I notice I'm moving in a funny way, I will parody myself, in a sort of self-deprecating way, exaggerating my movements. It's half unconscious though. I have some control over it once I notice I'm doing it, which is usually when I notice people reacting to it, usually in an amused way, sometimes in a scornful way.