Ginny had been amused by the goat. She wondered why it had a green rump. On second thought, she didn't wonder why. But the shirtless Harry standing in front of her was making it difficult to keep an innocent face.
Ginny laughed when he turned away intentionally. Thankfully he caught that it was just a game. She cleared her throat and spoke louder. "Excuse me, sir! But I would just like a drink."
She sat there and wondered how long he would play along in her little game. If he didn't reply again, she might have to serve herself.