Gym crush vibe?

I have a major gym crush and trying to figure out if he’s interested or it’s in my head. I see him all the time. I see him looking my way but not sure exactly if at me or just around the gym. Once he followed me on the indoor track walking the wrong way. I played it off. Few weeks later I also almost ran in to him in the track and of course I got scared and ran away lol. Today he sat down next to me lifting and I felt like we kept walking by eachother etc. probably in my head. Do I say something casual?

Gym crush vibe?
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