Search Results: staring at a crush

I’m wondering if this guy at work could have a crush on me or at the very least find me attractive. We work in completely different departments so there is minimal chance that our paths would cross in a work related context. Here is a list of his behaviours:

He is the one who started interacting with me. I noticed him gazing at me one day, our eyes met and he smiled at me.

The gazing/smiling happened a few times and he would always be the first to smile, I’d always be the first to look away.

When I eventually said hi to him, he smiled even more

He went through a phase of ignoring me and looking away when stood near me

When we do talk, he is smiling the whole time.
On our first proper interaction, he asked where I work and he said twice that he will have to come and “check it out”. I also told him what time I finish.

My friends said that they saw him walking past our office and staring into our office, ten minutes after I finished.

He acts somewhat awkward/fidgety when we walk and he sometimes backs away/walks away when we talk.

My work friends have noticed the way he looks at me. One saw us talking and she said “if my boyfriend looked like that at another girl, I’d be upset”

I was walking behind my friend and he was walking towards us. He was practically fixated on me and staring at me, then I looked at him, and he smiled at me.

I’ve never seen him talk to other random girls who aren’t in his department.

I’ve noticed that he will mess with his hair if I am nearby.

We sometimes make eye contact from afar.

Yesterday, as I turned around, I saw him looking away quickly which would indicate he was staring at me. And then as I was grabbing some cutlery, I looked up and he was staring at me.

There are some things I find confusing:

I’ve never caught him staring at me and looking at me loads
He never looks at my body, he just stares into my eyes and at my mouth
The whole walking away/backing away when I’m talking to him confuses me

What do you guys think?

Things he did:

1. When my a good friend of mine was in between us in class he would constantly tell him to stfu when he was talking to me
2. He used to make fart sounds with his hands, waiting for me to look at him and make my "are u serious" face to mimic me
3. He got very excited when I finally accepted to work with him once
4. He noticed I sleep a lot and called me sleepy head once when trying to wake me up
5. He literally humiliated himself on the class GC to try to get me to pair up with him for a presentation
6. He remembered my birthday when everyone forgot and reminded everyone
8. Called me once with his friends to ask me help for a work and after the called he said "bisou" (kiss in French) and his friends said "ah yes bisou" and he insulted them
9. Randomly coming up to me to ask me what game I’m playing
10. When I got a haircut he waited until my friends noticed it before telling me it looked cute on me, when I thanked him he puffed out his chest
11. He said a little pasta restaurant everyone goes to is shit but after he saw me going to it he started going there for lunch and when he sees me queuing he straightens up and looks at me
12. Once we had to correct our seatmate’s test and when I tried to give my test to my seatmate they turned back to give it to their friend so he yanked my test out of my hands and gave me his without asking
13. At the very second day back to school he immediately went up to me in front of the school door, I was confused and tried to leave bc he was in a call and it was awkward but he stopped me, ended his call and stared into my eyes while thinking about what to say before we walked to class together
14. Seems to have changed his morning schedule to arrive at school at the same time as me
15. At the queue for a small restaurant he got behind me and kept looking at my phone, talking loud about "interesting facts" (that were common knowledge) with his friend