[He tracks where he last read in the book with his eyes, so he can properly bookmark it.]

Weird trick? Are you usually a paranoid type? That's not always a bad thing, because maybe I do, maybe I don't! I'd say anything that catches you off guard is just something you didn't consider before rushing down here; I can relate to rushing into things, so it's no big deal, but -- yes!

Definitely, there's a trick to it.

Or a skill.

An ability?