For a split-second they flash their teeth in something that's not a smile. They don't get it, and they'd call him a liar if they did.

They push a hand towards the center of his chest area, trying to give him a bit of a shove. Not a rough one, mind you, but one that'd get their point across more clearly. "Hey. 'S a lot of castle you can be in. Take you and your book and go." They nudge said book with a toe.