Hagrid must have noticed Harry and Lavender looking at him, for he gave them a cheery wave. Harry waved back, his eyes roaming over the other teachers. Professor McGonagall and Professor Dumbledore were deep in a discussion of some kind; further down the table, Professor Quirrell, who'd added an absurd purple turban to his ensemble, was looking at the next teacher down, a wizard with greasy black hair, a hooked nose, and sallow skin.