Funny, because I think this is something that women do much moreso than men. Most men are not that introspective (and that's from getting male opinions, not just my opinion, about what men think about and do). They're thinking more about wanting to beat out the other guy, sports, the woman's physical attractiveness, how horny they are, what they can do to amuse themselves while they're waiting, etc. I really don't think they're fretting about how they're going to say stuff and rehearsing it.