Despite the unprecedented people who seem to know who he is and he has no idea who they are, this isn't his immediate assumption with regard to Kate; he figures she's being abrupt and fairly weirded out by some hairy lumberjack sharing a table with the Queen's sex toy. He isn't overly sympathetic, because it takes a lot to get even slightly sympathetic, but--

He, too, is willing to pretend nothing is on the table. His chin tucks in a little, uncertain. "What?"

Oh.

Yeah, he's meant to get a thing.

His expression shows that he gets her meaning after he's spoken, gaze darting for her hands.