Well I think it depends on your audience, I have noticed at gigs with a receptive audience who are up for it that comedians enjoy themselves more, obvious I know but if the audience are being receptive then your confidence grows and its hard not to smile and laugh along with them, I remember the first time I performed as Julio and the audience laughed so loud at one of my jokes that I could not stop myself from laughing along with them, I wish I could keep re-living that moment its one of my favourite in life so far, however I performed to a room full of comedians with no audience other than performers the other day and although I didn't bomb I can't say I particularly enjoyed that experience and it was the first time coming off stage not feeling great, but looking back I should have just done my set the best I could rather than being a diva about it, but you live and learn.