I don't play out much, but when I do, get moderately nervous. I auditioned the other day for the school showcase at the Ky Center For The Arts, and the atmosphere of playing 7 minutes for a panel of adjudicators got to me a little. I wasn't sure how to deal with them as an audience--since I mostly play participation things with kids. And I got a cold the night before, and worried about singing and managing my harmonica. But the other people there seemed so nervous it relaxed me a little--I wasn't THAT nervous. This thread helps too--I tend to imagine a world full of assured performers, plus me and my nerves.