When I am nervous, I can listen to my favourite music or I can think about something good.:)
I will piss and piss and piss...
is it useful to remember you are a psychologist, your meaning is that the psychologist will never be nervous. hahahaha
If I were nervous, I would breathe deeply, but sometimes I feel it was unuseful, for instance, I took part in the Chinese contest two weeks before, I managed to keep a cool head, but I couldn´t, as I went to the stage, my heart beat a lot, and my body trembled, I remember I keep me calm until I finished the contest after 30 mins.
I'll start doing some activites that amuse me, like playing cricket, or will hang out some time with friends.