Not picking on anyone but if you go to a strip club and plan on just viewing for a bit, that's a douchebag move.
You don't have to tip every dancer on stage while you're there, but then don't sit at the stage. And you damn well better have a drink, even if it's just water (which you will pay for) in your hand.
I've seen a guy or two stop by a club without money and expect to be able to stand there and get a free show. Hell, I'd kick their ass out and I don't even work there, ha!