[It could be concerning that she agrees he's acting mad, but Jamie is a doctor of Body Science and he knows how to read a woman (who is very clearly smiling invitingly at him). Her mutual interest seems to fluster him a little.

He used to be a lot smoother, but maybe that's because he cared less about making a good impression and it was just a numbers game with girls. He's grown out of playing games and playing hard to get, so he's nodding vigorously at her invitation.]

I drink a lot of thinks-- yeah. Love to drink them with you. [God.]

D'you want coffee now? We can go get a coffee now-- or we could have a coffee at mine. [He holds up his hands at chest height as if in surrender or something.] Not trying to make a move like that-- I just have a really nice coffee maker.