10. They put up with you.
9. They volunteer to meet you and hang out with you while you write your thesis.
8. You know you can call them whenever and they will answer.
7. They are always ready to go hang out/drink/talk/whatever you need with you.
6. They email bad/funny/tacky pics to you before they post them on facebook. And ask your permission to do so.
5. They name your thesis.
4. They know that alcohol should be used to celebrate every milestone.
3. They offer to let you live with them so that you can move to a new city.
2. They come over and study with you until 3:30 am, because they know you study better with someone else there.
1. They volunteer to pray for you for anything, anytime, anywhere.