I like SL’s questions.
Here are a few more…
9. How much does he tip waiters* when he’s alone?
10. What makes him angry? When does he raise his voice?
11. How does he respond when another car cuts in front of him?
12. Does he do his own laundry [using a washer/dryer]?
13. Does he wash dishes?
14. Does he eat his latkes with applesauce or sour cream?
*Additional options: Caddies, and valet attendants