There's a guy in my workplace I'm not sure if he likes me or not?

We say hello or wave when we first see each other but that's it. If we bump into each other on the hall during the course of the day he just stares straight ahead. We often make small talk when we first meet in the morning. It's only recently he started talking to me before if we were in the same room or lift there would be silence. I think he's shy but so am I. Sometimes he helps me out with tasks that are completely unrelated to his job. We're in completely different areas. He carries heavy items for me or lets me out a door first. He insisted on carrying a bag one day even though I told him it's too heavy. He asks the most random questions and I know he has absolutely no interest in knowing the answers to. I never really noticed him before but lately I can't help but have a crush on him and I think he knows. He caught me looking at him a few times. I think he often looks at me each time he walks by when I'm standing around chatting to others because he wants to see am I looking at him. I think he's kind of flirting with me. One part of my job is collecting items from certain areas first thing in the morning and these areas are places he works so he's often coming in behind me. One morning he said "I'm not stalking you _____" saying my name. I didn't know he even knew my name. He doesn't make much eye contact but we have locked eyes occasionally. He tends to look to the side when we talk and sometimes he has a slight smile on his face. I just don't know. Is he trying to be nice or does he like me?

There's a guy in my workplace I'm not sure if he likes me or not?
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