Don't wear shorts or a hat. Unless you are wearing a total outfit and the hat compliments other accessories in the outfit for the true rockstar look, avoid it, they look ridiculous on stage if you just casually wear a hat. Especially since most bass players pick the most ludicrous hats, like bowlers and fedoras. Coordinate with your band, at least with the guys in front of the kit.
Carvin LB76 / Dingwall ABZ ! Support Local !
MarkBass SD 800
Epifani UL2-310 / fEARful 1212/6
! Rocking against all gods !