Stranger guy looks at me twice a day. What does it mean?

First, when we walked towards each other. I was the one who first saw him, when he looked up and saw I was looking at him he held eye contact. After approx. 10-15 minutes I walked past him and he looked at my face with a neutral expression when I was closer to him.
if it’t not obvius I have a crush on him.

Stranger guy looks at me twice a day. What does it mean?
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