He doesn't respond to anything at all, in fact, his expression doesn't change. If he notices what Ankh's thinking, he either doesn't feel like commenting, or can't tell.

Or perhaps he's just a good guesser.

"The other guide. I'm not speaking his name. You find him. Aside from that, I need my Keys. If you want to be whole and in one piece, that is. I assume you do?"