He looks extremely pleased to be recognized, and downright delighted to get that kind of hostile response. This is exactly the kind of return to normalcy that he needed. It would almost be enough to make him cry, if that were a thing he was actually physically capable of.

He shifts, straightening up and away from the wall and grinning menacingly. "Charming. I'm afraid you have me at a disadvantage though." Seriously, that voice is nagging at him, it's so familiar but he really can't place it.

"No matter, I suppose," he shrugs. "You Autobots are all so painfully similar anyway."