He looks puzzled- either by being genuinely glared at by an animal, by the fact that the very same animal is talking to him, or by realizing who it is. Forget the scent, that's an unmistakable voice. Even if it is coming from a cat.

Ghoul frowns and simply says, "Kay," though he makes no effort to move. At all. After a few seconds of awkward silence, he adds, "In a minute, swear. Fucking hurts." He's convinced that his joints age an extra ten years every month, and no one can tell him otherwise.