People always will talk to you about anything they know a lot about.

You can approach any human, of any standing, anywhere on Earth, and if you ask a question that hits them right in their knowledge center, especially if it is something they don't commonly get to talk about, they will positively engage with you.

I know speaking with absolutes on the internet is a borderline crime, but this is so reliable I think it warrants it.

This is why a lot of "how to get people to like you" advice is really just "ask them lots of questions"

You ask enough questions about different topics and you'll get a positive reaction probably