[Castiel looked to the TV screen, curiously and tried to figure out what was going on. He had trouble keeping up with all the stuff Dean tried to make him watch so he knew he'd have no hope with Jo]
I see. [He cleared his throat, a little awkwardly]
I'm looking for Dean. I've had trouble finding him over the past few days, I don't know where he is. I've searched everywhere. [He looked troubled]