Katie

“Well?" Ron said finally, looking up at Harry. "How was it?"
Harry considered it for a moment. "Wet," he said truthfully.
Ron made a noise that might have indicated jubilation or disgust, it was hard to tell.
"Because she was crying," Harry continued heavily.
"Oh," said Ron, his smile faded slightly. "Are you that bad at kissing?"
"Dunno," said Harry, who hadn't considered this, and immediately felt rather worried. "Maybe I am.”
― J.K. Rowling, Harry Potter and the Order of the Phoenix

“I solemnly swear that I am up to no good.”
― J.K. Rowling, Harry Potter and the Prisoner of Azkaban

“Well, I certainly don't," said Percy sanctimoniously. "I shudder to think what the state of my in-tray would be if I was away from work for five days."
"Yeah, someone might slip dragon dung in it again, eh, Perce?" said Fred.
"That was a sample of fertilizer from Norway!" said Percy, going very red in the face. "It was nothing personal!"
"It was," Fred whispered to Harry as they got up from the table. "We sent it.”
― J.K. Rowling, Harry Potter and the Goblet of Fire

“A breeze ruffled the neat hedges of Privet Drive, which lay silent and tidy under the inky sky, the very last place you would expect astonishing things to happen. Harry Potter rolled over inside his blankets without waking up. One small hand closed on the letter beside him and he slept on, not knowing he was special, not knowing he was famous, not knowing he would be woken in a few hours' time by Mrs. Dursley's scream as she opened the front door to put out the milk bottles, nor that he would spend the next few weeks being prodded and pinched by his cousin Dudley...He couldn't know that at this very moment, people meeting in secret all over the country were holding up their glasses and saying in hushed voices: "To Harry Potter - the boy who lived!”
― J.K. Rowling, Harry Potter and the Sorcerer's Stone