[Drink some water and he'll think about the beanbag. Tenma crouches down to be closer to eye level, at least, like a respectful doctor should. He wasn't planning on babysitting the mildly intoxicated, but here he is...]

My name is Tenma; I'm a doctor. I thought I'd come to the party and make some friends, like everyone else.

[And he's been sitting in a corner, so he's not doing that at all actually.]

What's your name?