How long has he been at daycare? Can't tell if he's new there or has been there for a while. If he's new, he might just be a little nervous being around so many other kids for the first time.
Has he been acting differently at home? You've not mentioned changes before.
BD
My latest
Me: 36 W: 35 2 D: 9 and 5 T: 16 years M: 12 10/4/06: Bomb 10/5/06: Ended A 4/22/07: ILYBNILWY
