I might not use capital letters. But I would definitely use an apostrophe…and probably a period. I’m a huge fan of punctuation.
Rainbow RowellI'm the Cool One," she told herself. "Somebody give me some tequila because I'll totally drink it. And there's no way you're going to find me later having a panic attack in your parents' bathroom. Who wants to French-kiss?
Rainbow RowellIn some cases, she was actively trying not to make friends, though she usually stopped short of being rude. (Uptight, tense, and mildly misanthropic? Yes. Rude? No.)
Rainbow RowellIt was the nicest thing she could imagine. It made her want to have his babies and give him both of her kidneys.
Rainbow Rowell