When Paul is at the ball he approaches Jay to say goodbye. If you watch his drink it is full in the first shot then in the very next one it's almost empty.
When Paul returns to his school he finds a dead bird in the driveway. The bird is a starling. He picks it up and puts it in the bin, but the bird comes back to life. However, the living bird is a blackbird, not a starling. It also makes the blackbird distress call.