His eyes flashed angrily. "Always the know-it-all that won’t shut up, aren’t you, Granger?" He wrinkled his nose in disgust, but then his eyes started to travel away from her own, down to her mouth, where he stilled his gaze. His brow remained wrinkled, but his mouth softened, his lips parting. He licked his lips so slightly and quickly; Hermione wasn’t even sure if she had really seen it.