About Boy on my College Campus?

So, there’s this boy I’ve seen a handful of times on campus. The first time, he held the door open for me and my friends and he was smiling. The second time I saw him, I was in a car in the parking lot with my ride. He was skateboarding and stopped so he wouldn’t get hit by my ride. In that moment, we locked eyes and he smiled at me. The third time I saw him, I was having a conversation on the phone in a cafe on campus. He entered the room but I don’t think he saw me at first because his back was to me. He greeted his guy friend that he saw and before he left, he kind of like glanced over his shoulder and stared at me. Then he left. Does any of this mean anything?
About Boy on my College Campus?
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