He takes a step back when she snaps at him, but he still prefers it to the sheer unnerving enthusiasm of the other humans in this place.

"I didn't mean here here, I meant..." He waves his hands around to gesture at everything around them. "In this weird place. I woke up in a room, but I keep running into people that ask me weird questions, but I figured you didn't look like you'd be a part of whatever this thing is."

Mostly because she's another kid, but also because she seems as freaked out as he does. He's assuming, of course, the adults asking him invasive questions are a part of whatever's going on.