However, I don't get nervous at all if I have some sort of script in my hands, and especially not if my teammates and I have gone through the presentation at least once; only I don't especially enjoy the attention on me as I talk.
Unfortunately I can't improvise for speeches and presentations at all, and that's when I become very self conscious and lose my voice altogether...
This also happens whenever I have to sing in front of an audience; and happen to not be in a large group such as a choir. Perhaps this is only because I have some degree of glossophobia?
I look forward to hearing what you all think on the matter!