Ron will do the sighing for her as he blinks down at the mushroom in hand.

That had not gone over as well as he'd have liked, but when does he ever manage to get it right with Hermione?

"No, it's all right. I'm awake now, aren't I?" he says, not entirely without rancour. He shoves his hands, crushing the mushrooms, into his pockets and hunkers down against the cold.