He nods, since it would be rude not to respond at all. She isn't a child talking at a pet, after all. There's no point in answering aloud, since he doesn't have a single name that humans can use.

He gets to his feet so that he can nudge the nearby stone bowl with his nose. This is where the herbs are to be burned, but. He can't actually do that part himself. His power here doesn't seem to include fire. It does include telekinesis, but why should he move the herbs if there's a human here with perfectly good hands to do the job?