Hey! Guys can definitely be confusing. Could he like you? Absolutely. Can you know for sure? Nope
However, unless he's using this forum, none of us will be able to tell you the answer for sure. We can't read what's going on his mind, unfortunately. Looking on the bright side, you can definitely tell that he doesn't dislike you. Which leaves you open to move closer to her and express your interest in her.
You can start making eye contact with him. From there, smile at him so he knows that you notice him. Once you're comfortable, move on to waving and saying hi. See how he responds to the new contact between you guys to get a better idea of whether he's interested
Dating and relationships are a lot about taking risks though. Risking rejection for the chance of finding someone you really enjoy. So to find out what could happen with guys, you're going to have to move from analyzing their actions to taking action. Will you get the guy every time? Nope, I'm not going to lie and say you will. We all go through rejection at some point. But finding someone who makes you feel whole and happy is worth it, trust me.
Try to keep your confidence high, remember all that you have to offer. And then start taking some risks so you can get that reward that you desire.
Good luck!
<3 Audrey