He likes the silly and the eyebrow waggling. He's often goofy as well. They can be goofy together. His expression is one of surprise, eyebrows going up, goofy grin loping across his face.

"Yeah?" After a moment he realizes that wasn't an answer, but more a question. "I mean...yeah. That'd be--we could--sometime...or you know, now. If you wanted to go back to the hotel and test out--test out some doors. We could do that."

It'll be safer than here and he's less likely to have to reveal his secret to her in a library.