Feel free to add to this list.
1. He opens your doors, simple, but so true
2. Holds your hand
3. Uses please and thank you
4. Smells good
5. Always over uses I love you's
6. Kiss in the morning, when you get home, and goodnight
7. Doesn't swear
8. Pays attention to the fact that the world is more threatening for girls
9. Cleans just because
10. Doesn't start eating until you sit down.