My roommate: She is studying to be a nurse, and is really quiet. When she does speak, she says some pretty awkward things (but not too weird). A habit of hers is to bottle her emotions up inside, and generally comes off as a pushover. Even if she's mad at you, she'll still smile a lot, except when she's really angry. She has a pretty irregular sleep schedule, and enjoys going on walks. I don't know too much about her life except that she's really close to her family and doesn't keep in contact with anyone from high school. She describes herself as "invisible" and will go out with friends even if she has things to do because she doesn't like to upset others (read: bad at time management). Very sensitive (cries at the drop of a hat), and not at all organized.
Neighbor: She is constantly going. Always talking and never keeping any of her opinions to herself. She's blunt (read: rude) and a bit spacey. Has a habit of thinking she's always right, even when she's not, but will talk to anyone without hesitation and makes friends rather quickly. Isn't really concerned about education (at least not over her social life). Rather bossy, but loves to be involved in a lot of social organizations. Can go from ditz to earthy in 3 seconds, is good at managing her time, and enjoys correcting others. Very artsy and loves to design clothes and decorate a lot.
If you need any other info, just ask.