There's a moment's hesitation not just for the fact that it's left-handed, but because Bruce generally doesn't like to touch people. He gives into the courtesy, though, not wanting to be rude, and offers a brief handshake. It's not tentative, despite the fact that most people would probably be at least a little reluctant; it's just reserved.

"Bruce Banner. I am new, not even a full week yet. I just, thought I'd jump in feet first with researching. I'm used to looking for impossible answers." It's a drastic understatement, because if anyone knows how to be undaunted at difficult to answer questions, it's Bruce. This one he thinks he might even find an answer for, unlike his own questions, which he has a thousand of. But Tu Vishan is a mystery more easily solved than the Hulk, as seen by the fact that he already has made a little bit of progress on it.

"What do you do around here?"