[given the way he only smiles in response in that "no thoughts head empty" sort of way he doesn't get the reference even though I'm sure he'd love scoob.]

Hey, it's all I've got right now. [and so he begins to lead, folding his hands behind his head while he walks at a leisurely pace.] It's usually the first thing we do when we end up in a new world anyway, but they've never been this empty before.