[Dave holds the PDA and stares at the screen for a bit. He raises an eyebrow. John could still talk. Dave could still hear very well. Maybe a little too well sometimes that it kind of hurt sometimes.

Dave looks up at John, absentmindedly pocketing the PDA for a moment before holding his hands up to slowly sign 'ASL' at John. Honestly, if John could lip read, he wasn't sure whether he ever learned it, but it was worth a try. At worst, it would be like when he tried signing to Red and the other just looked at him funny.]