Yeah it does. I never smoke before any sort of speech/presentation. It amplifies my nervousness, and the fact that I smell like a cigarette when presenting doesn't help my confidence either :)
Yes... smoking is a stimulant. Therefore you will be easier to display excitement, or nervousness ...
Smoking cigarettes is just bad full stop.Smoke weed in a bong but grow your own as dealers are cutting MJ with all sorts of ****
Nicotine can make your heart race, its bad ****
Dunno about you but smoking calms me down lol. Unless your smoking something different to me :-P