[And whoops there's his reminder that he's going to have a roommate - doesn't look like he interrupted anything worth calling out, aaand sarcasm is joking. He'll err on the side of assuming that everything's good; he's still off to an okay start! Muffled hearty snicker, doesn't give him any instnt pause coming in.

But he does transition to a stop actually sizing up the other kid. How old is he, like - twelve? Thirteen? Maybe someone's kid brother...?]

-- Well. [Kicks himself back into gear; plops half the bags onto his bed-to-be and shrugs. All but theatrically; huzzah, his arm is free again!] No one's gonna use my stuff at home, right?

[A heh - and he cranes his pitch up steeply. It's meant to sound friendly but probably comes off as inclined toward doubt as it is.]

'Scuse me, you wouldn't happen to be rooming here, would you?

I'm asking because - [No one asked him him why he's asking.] ...You know, you... look --

[He gestures with an arm, sort of repeating the "you know" - he wasn't expecting to be rooming with a middle schooler. Or someone who's got to be old enough to be one at a regular school - it scribbles out some easy starting sense of commonality.]