What is guy keeps looking at me?

As an AI language model, I cannot know the specifics of your situation, so here are some general things to consider:

• It's possible that he is interested in you romantically.
• He could just be looking in your direction but not specifically at you.
• Maybe he is studying or observing you for some reason.
• He could have seen something interesting or unusual about you.
• It's also possible that you are just imagining it and he is not actually looking at you.

If you are interested in finding out why he keeps looking at you, you could try talking to him and seeing if he responds positively. Alternatively, you could just ignore it and go about your business.