"Hello, Harry"said George, beaming at him. "We thought we heard your dulcet tones.""You don't want to bottle up your anger like that, Harry, let it all out,"said Fred, also beaming. "There might be a couple of people fifty miles away who didn't hear you."
"Don’t put your wand there, boy! ... Better wizards than you have lost buttocks, you know!"
"Mistletoe,"said Luna dreamily, pointing at a large clump of white berries placed almost over Harry's head. He jumped out from under it. "Good thinking,"said Luna seriously. "It's often infested with nargles."
"Ask us no questions and we’ll tell you no lies."
"Well, we were always going to fail that one,"said Ron gloomily as they ascended the marble staircase. He had just made Harry feel rather better by telling him how he told the examiner in detail about the ugly man with a wart on his nose in the crystal ball, only to look up and realize he had been describing the examiner's reflection."
"Yeah, Quirrell was a great teacher. There was just that minor drawback of him having Lord Voldemort sticking out of the back of his head!"