It means he cares still or he could like you. So he finds ways to look at you or be apart of the group. Don’t give in just yet, let him suffer and come crawling back. Tomorrow dress all cute and act adorable. OR this is an option like try to talk to him and get in his head. Whatever the issue was I’m sure you guys can come over it otherwise he wouldn’t be staring and trying to get your attention.
It’s 2:58 AM and I have to get up at 6:30 AM meaning I’ll only have 3 hours of sleep. Ok good night. ;*
Awh really? I wish we can have that again..

When they find ways to catch your eye or they just really try wigglying their way to where you are at. Like if you are at a table and they come to it and act all awkward but you notice when they talk or put their two cents in they are looking at you. It depend on the situation really.