Harry Potter and the Chamber of Secrets
Just then, Ginny Weasley came over and sat down next to Ron. She looked tense and nervous, and Harry noticed that he hands were twisting in her lap.
"What's up?" said Ron, helping himself to more porridge.
Ginny didn't say anything, but glanced up and down the Gryffindor table with a scared look on her face that reminded Harry of someone, though he couldn't think who.
"Spit it out," said Ron, watching her.
Harry suddenly realized who Ginny looked like. She was rocking backward and forward slightly in her chair, exactly like Dobby did when he was teetering on the edge of revealing forbidden information. (16.20-24)