Mixed signals!

I went out once with a guy that I work with a while ago. (We work separate jobs but same company). He said he be down if I want to hangout again. He’s super busy, with three jobs and school so we haven’t hung out since. He takes hours to text back when I had his number (but I lost it) so I figured he’s busy and now hasn’t contacted me since we’ve hung out. So I figured we’d just be friends! He may not be interested.

However, then I go to work and he smiles at me non stop, sometimes turns red and I catch him staring frequently all day, to the point where other coworkers have even pointed it out and began to notice. We have mirrors all over our walls so I can see him watching me and if I look up he either smiles or looks away! Everyone knows he is a little awkward and super shy. But he himself claims he’s super outgoing. So I’m unsure if he’s just a shy guy or doesn’t like me back.

He’s started to randomly make comments about his schedule during our conversations as well. Like « I’m sorry I’ve been so busy! I was taking new classes! » « man.. you know I have so much free time on my hands now » « idk what I’m gonna do today.. because I’m free » he often hints that I should text him. he asks me many personal questions and says my name often. In person he seems interested and but I don’t know why he’s never acted on it himself.

Problem is he hasn’t reached out again so I don’t have his number. Which seems like he’s uninterested. Some how he is still in my snap chat recommendations! However I don’t want to add him and reach out and it be weird if I’m misreading his hints. But I also don’t want to not reach out if he is interested and make him think I’m not!

I haven’t out right talked to him about this because we never have privacy at work and people gossip.

What do I do?