HELP ME PLEASEEE

So I have a friend who has a crush on me and HE MAKES ME UNCOMFORTABLE AND I DON’T KNOW HOW TO CONFRONT THE SITUATION BECAUSE I DON’T WANT TO BE RUDE AND I DON’T WANT THINGS TO BE AWKWARD DURING OUR CLASSES AHHHH! HE’S GENUINELY NICE BUT HE HASN’T GOTTEN THE HINT THAT I’M NOT INTERESTED 😳