Long, thin fingers. I also notice the shape of the nails, I usually don't like long nails, I keep thinking they're more like claws. Also, freckles, glasses, red hair, pale skin, the red hair/blue or green eyes combo.
Less odd, I suppose, not that the first paragraph had anything literally odd in it - I really like it when a girl has a well defined waist, not brutal, like "hourglass figure", just enough for putting an arm around. There are a bunch of other little details which I can't really name, because they're all about context and how different features work with each other...