Allright, what do you talk to Nomi's about?

I mean, after a while you're kinda out of Greek Myths or video games or cryptozoology. Can you ask about their family? Or their job? Or I dunno. I feel kind of trapped sometimes. They're always nice but I'm kinda using this as a writing tool so I want to keep it fairly realistic. I just don't know if I'm stepping over the bounds of the AI if I try to make normal conversation. Any advice?