I've been mulling over this prompt and did some pre-outlining, but are there hobbies or passions or fun facts that are like... Too weird? Because in any one of those I could mention/want to mention that I really love reptiles. I have a snake now (not my avatar, that's an eyelash viper at the zoo). But some people think reptiles are gross and people who keep them are creepy weirdos, so I tend to not want to mention it to people. I don't want them to suspect I actually want to be a vet, either.
I mean surely they've seen stranger stuff, right?