Trick question! As far as I can tell, we are all natural performers.
Observe a young child. Pay attention to how uninhibited they are. Ever notice how freely they express themselves without fear of saying the wrong thing, or doing the wrong thing? Case in point, my four-year old can’t carry a tune, but hams it up like a rock star and actually asks me to capture his performances on video.
On the flip side, this same lack of inhibition sometimes leads to very loud and attention-grabbing public displays of displeasure when he doesn’t get his way.