I've liked a guy I barely know for 2 years!

Please help me! I've liked this guy for 2 years now and I barely know him still! When I first saw him, I felt this connection between us (this sounds so cringy!) I always wondered if he felt it to? He works near where I work and I often find myself hoping to see him as I pass his window. He's approached me a couple of times on nights out, being like "hey, I know you..." although I can't remember the rest of the conversation! 😂 And when he first approached me I was soooo happy that he recognised me! Ever since he recognised me, I see him nearly every time I go on nights out with friends, but we kind of just make awkward eye contact and say hi. I often feel his eyes on me when we're near each other and I catch myself looking at him too when he's not looking at me. am I being stupid?!? Because I believe that there is something there between us. When I spoke to him once, one of my friends said that he probably kept speaking to me because he liked me, but I just told her, "no he doesn't, he's just being nice!" I haven't told anyone about my feelings for him, because I feel like I'm just being stupid and a little psycho. But whenever I see him, I can't stop thinking about him, he's on my mind morning and night!