Why is he acting this way?

So theres this guy I like in highschool, & he looks at me a lot (started happening last year)... so anyways we have a cl together & I sit a couple rows behind him, & i noticed that he turns around to look at me during cl or atleast looks in my direction.. ive also noticed that his friends have looked at me, (they kinda turn to eachother & then look at me) & especially one of his friends looks at me... almost as if there's something up....oh, & one time I was walking behind him in the hallway & he glanced over his shoulder to look at me. ive also noticed that sometimes his face (cheeks) will turn a little pink aswell, & he'll touch his hair usually.... another thing i noticed is that one day when i walked into cl after he saw me he started studdering (he was talking to someone beside him) & he seems flustered when im near him, but the confusing part is that sometimes he'll act like this, but at other times he'll act confident/silly..... its almost like hes also trying to hide his feelings.. idk but yeah.......do you think hes interested?