Steve buttons up his sweater, straightens the bottom and puts his hands in his pockets in one shot with the Professor. In the next shot, when he's facing Belle, he buttons the bottom buttons again (before putting his hands in his pockets again).
Near the end, after the big match, in Belle's dressing room, in one shot Willie has a cigarette to his mouth in his right hand and his left is in his pocket. In the next wider shot, he's smoking with his left hand, and his right is in his pocket.