Not-a-date: advice needed!

Blueswan • 🏳️‍🌈 (Pan/demi, she/they) A smart feminist who writes, sews, cooks, etc. kundalini/Sikh follower, and hopefully successful college student. ADHD/anxiety
So the other day I ran into this guy (in a candy shop of all places) and I think he was flirting with me. He seemed smart and we are both are found of reading classics.
I'm not attracted to him, but I want to get to know him better, as he seems like a potential friend. How should I approach him so it doesn't look like I'm being creepy or asking him out??