She wanted to be a dancer---in fact, a striptease artist!---at an old-fashion burlesque show. Her family found out right before the big show she had so practiced for. So, the question is, what is she going to do? Oh, she dances, she dances stellarly well.
Tattoo: Boss, I don't understand. Why are people applauding? She's not taking anything off.
Roark: Ah, but it's the way she's not taking anything off.