Actually, to me, this picture with President Bush looking down, making that face, looks like he is doing a sobriety test and is having to walk in a straight line....LOL
I know that isn't really a laughing matter for Bush...but he DOES kinda look like he is trying not to wobble...IMHO
He tends to hold his arms out from his side a lot. Not as much as in that photo, though, which I think was caught just as he turned around from saying thanks to the doctors. Don't know why, but have always thought maybe it's due to a bulletproof vest.