Koshi was pretty tough, and had experienced more than his fair share of "show dominance through aggressive hand-shaking" on the diamond, so he barely even noticed the other boy's grip. He was just happy to shake hands, though after a few seconds he let go - hopefully his roommate did too.

"So, what's your name?" he asked, just deciding to be direct about it - if they were going to be roommates, it wasn't like he could dance around not knowing his name very long.