Teddy helped clear things some (still tossing little bits of food in his mouth here and there), then gave a sleepy, satisfied smile and wandered over to Kate when he caught her by herself some.
She did have SOME warning before he pulled her into a hug. He held out his big green hands as a clue before pulling her into a (gentle) glomp. "You rock. Thank you... I'm going to go pass out in a turkey coma now."
He leaned over Mia's chair, blinking sleepily at the game going on before he wandered to the side couch and stretched out on it, ankles crossed and propped up over one of the arms. It took him little time to fall asleep.
The green simply melted away, the bulk leaving the shoulders. What was left was a fairly-normal looking teenager on the couch with his hands folded over his belly, breathing evenly. As the New York teens knew, Teddy didn't maintain his shape shifting once unconscious.