Swish and flick.

Strange how short-sighted being invisible can make you.

Or yet in wise old Ravenclaw,
if you've a ready mind,
Where those of wit and learning,
Will always find their kind.

He sounds exactly like Moody," said Harry quietly, tucking the letter away again inside his robes. "'Constant vigilance!' You'd think I walk around with my eyes shut, banging off the walls....

But Ron was staring at Hermione as though suddenly seeing her in a whole new light.
“Hermione, Neville’s right — you are a girl. . . .”
“Oh well spotted,” she said acidly.

Ron's indignation on his behalf was worth about a hundred points to him.