Most Helpful Guy
basically if he give you strong eye contact 2-3 sec the longer the better this is the best sign cause guys don't look at what they don't like esp multiple times just go up to him and make small talk what is the worse that could happen
Most Helpful Girl
It's highly possible, especially from what you've described. I'd get to know him a little more. Signs of a guy liking you can be anything from making eye contact to trying to be around you more often than not. Best of luck!