The first thing that Han notices is that someone is grabbing at his head. Which is a bit shocking when you're as out of it as he is right now. His impulse is to swat it away, not realizing initially that the touch is a kind one, and that the person offering it is a friend. Perhaps it's good luck that his hand is shaking so hard he can't defend himself.

The voice ... When his mind has had time to catch up with what his ears had heard, it's not instantly familiar. Not the way it would have been if it was someone he was close to. Not unfamiliar either, though, which doesn't particularly make him feel better.

"Who are you?" He says, swallowing at a lump in his throat and trying to ignore the twisting feeling in his guts. "Where are my ... friends? Where's Leia?"