Guy's Behavior

What does it mean if a guy I work constantly tries to grab my attention by pulling me into a conversation with someone else (read more below)?

I will have one headphone in and will be working and then I hear him say my need in the conversation with another guy coworker. More often he’s making a teasing remark at me through the conversation with this other person. It’s so random. He also often tries to bump into me when I walk by and has given me taps on the head. He hovers over my chair at times so close as I’m showing him something on the screen. We also catch each others eyes a lot and stare for a few minutes. He sexually jokes with me a lot and will ask who I am dating and the guys name. I remember he sent me something via text (was funny but a bit sexual) and I sent it to a "friend"/guy I've been talking to. He kept asking "who did you send that too?" Like as if it bothered him? I don't know... is he into me or just being a guy friend?

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He’s even gone as far as looked up a guy I was interested in. Was even ready to search on Facebook for this other guy I was starting to see from a dating app. I don’t have any real guy friends, so again is this normal guy friend behavior toward a girl or is this more he has feelings?
What does it mean if a guy I work constantly tries to grab my attention by pulling me into a conversation with someone else (read more below)?
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