Since my full circumcision, I found myself not holding the dick when pissing. I pull it out with left hand, piss, and then shake it with left hand. (or often, I find myself just pushing under scrotum a few times to shape the whole kit and kaboodle.)
When I was uncut and semi cut, I always held it. (uncut, to keep skin retracted, and semi cut to prevent skin from retracting sinc that would give me a boner).