Wanting a character with witty comebacks.
Personally, I love them, and witty characters make me feel like oneday *I* might be able to be as witty and remarkable as them. It hasn't worked so far, but I've enjoyed meeting these characters enormously, and they're some of my favourites.
Back when I actually did features regularly? Kami was fairly well a permanent fixture. With her wit, sass and need to know the truth, Kami inspired me endlessly. She has a wardrobe to be swooned for, with kitten heels and an array of dresses in patterns that made me... well, swoon. In fact, she may well have been my first true bookish crush. And she had a comeback for almost every situation, and each and every one of them would make me smile and internally cheer. See, who else could throw a rock at a window, acidentally send it through said window (with glass going everywhere) and then make you see that it wasn't actually *her* fault?
No one, I tell you. Kami is completely unique in her ability to make you see reason and realise when you, in fact, are the one at fault.
I think Ginny has featured on a lot of my lists, also, but that's because a. she is just so darn great, and b. I like her a lot. She's a secondary character who has a lot of character depth and I love exploring that. Each time I do, I find out just how much I love her.
As for wit, Ginny is quite possibly my favourite in this series for it. Harry can be pretty good, too, but overall I think she triumphs. Ginny was always a character I loved because she was accepted, and when she wasn't she fought until people saw her way, and whilst that wasn't always achieved by wit, her conversations, comments and general communication always made sense to me. She could (and did) tell Harry that he was being an idiot a good few times, and she would be right at the same time as making me smirk, because of the way she said it. I'm not quite sure that anyone else could say it like it was like Ginny could.
My last Books for when you're... topic was Wanting to learn a new activity. It featured Host Clubs and Poisoners. The obvious choices.