- Guys who play piano.
- Guys who know computers.
- Women who have a great sense of humor.
- Women who are 
slightly boisterous.  Not obnoxious - but definitely not meek and mild.  Oh, and they still must retain their femininity.  
- Men who call me 'baby.'  
 
Edit - my title needs to be adjusted I think.  I mean, 'not physical traits.'  meh!