While still alive, they did divide their favorites from the throng. Yet how to pick the worthy ones when they were dead and gone. 'Twas Gryffindor who found the way, he whipped me off his head. The founders put some brains in me so I could choose instead. Now slip me snug about your ears, I've never yet been wrong. I'll have a look inside your mind and tell where you belong! (Is it sad I know the whole song?)
Harry and Luna - This part, where Harry asks Luna to Prof. Slughorns party is one of my favourite. Because being invited somewhere as a friend is great and important - not a disappointment, as it is often made out to be.