Sit at the rack without tipping
That whole thing about how most dancers only get paid in tips? It's totally true. So if you're taking in the show without letting at least $1 fly per song (emphasis on "at least"), you're either gonna get called out or catch a stiletto to the eye.
Insist that you just stopped in for a beer
So, your favorite neighborhood bar is a place that's 5mi from home and happens to have naked chicks in it, eh? If you're oogling from the bar and not tipping, you're just being a tightwad taking advantage of a free show.