Never been on a date but I’ll throw this out anyway:
Hobbies- cooking, tech stuff, plays an instrument… (this is probably an old one)
If you and he follow current events, you can ask his opinion on something in the news.
A little heavier, but one trait thats very important for life, in a friend etc (I was gonna say spouse but, well…)
Favorite quote, motto, favorite joke etc
Hatzlacha