When the boys are at the pool and Squints says," I've swam here every summer of my life....." his hair is flat on his head. Then when he says," I can't take this no more," his hair is parted and flicked up. It stays like that all through the getting out of the pool, the weird smile, and getting on the board (that his hair is parted and flicked up) But on his close up of him on the board, is hair is flat again.