I'm generally pretty chatty. Depending on the fight I'll make off comments while fighting but generally I'm quiet while fighting because I'm hitting all of the buttons! But between pulls? I yack, I joke, I babble on randomly and of course I greet the folks who join the group.

That said, I don't generally give up strats the first run through something, even if I've done it a million times. If someone asks for them I give them gladly, but if folks don't ask I don't bother telling because I personally have always preferred to figure the fight out instead of being told how it's going to happen on my first run.