So I have this guy who followed me on IG a couple months back and I followed back because his content was really cool and interesting. I did think he was kinda cute also but didn't dwell on it. Lately he posted a story that I popped up about as it was a topic I was interested in. Also I would start up conversations with random people sometimes so it doesn't mean anything from my side. Anyway, he was really nice and answered the questions I had and gave some recommendations on further research. Then he started asking personal questions about what I do for work and things like that. It was a short conversation but he was quick to respond and chatty too. And I ended it after wishing him luck in his life.

Anyway this all happened hours ago. Come to find that sometime after midnight, I can see he started liking older photos on my page like from a year ago even, in succession. Seemed like a bold move to me but I'm not sure what it means.

Is this his way of conveying attraction to me? Should I take this as a sign? Idk if I like him at this stage but I'm curious. And should I do anything or just leave it for now?

TL:DR IG follower had conversation with me. Hours later, went to my profile and started liking old pictures. Is he trying to signal interest in me? Should I do anything about it or leave the ball in his court?