It's natural we feel uncomfortable
and uneasy when someone is seeing us.
This maybe a sense of unsafty, keeping think whether I seem to be stupid, I am appropriate for what I have done just now.
Sometimes it's this inside question the occurs to me -Does anybody hate me or have a contempt to me based on my appearance and behavior, leading to anxiety and low level of happiness.
Thus we very often avoid to try to speak and perform in public instead of copying.
Only we put ourselves on the line and learn from the failure experience can we succeed and manage to handle difficulties.