Dick rolls off the bed, crossing the room in a couple of strides and grabbing hold of the offered hand to shake it.

"Dick Grayson," he introduces himself "And..I assume so? They didn't tell us we were getting a new roommate, but there's definitely space, so you're welcome here. I can take you to one of the free beds, if you want?" he didn't want to be rude, but he wasn't sure how much help Matt would need.