Never one to look down his nose as a golden opportunity to get the fuck out of a party situation, Bruce doesn't hesitate, and moves seamlessly into the indicated room as if that's where he was going all along. It's only when he closes the (lattice-worked, mostly decorative) door behind him and the woman who'd beckoned him over that he hesitates.

"...Was that a pickup line?"

(It might be a joke. Or that sudden look of Oh crap could be genuine.)