Help initiating

So I’m a senior in high school and I’ve always been super bad at talking to guys I find attractive. Well there’s this kid and he’s super funny, attractive, sweet, and mature. We’ve never had a one on one conversation but I have a major crush. I often find him looking at me when I go to look at him and am not sure if that’s a signal I should try talking to him. I’m super afraid of rejection and am not even sure how to go about it. Any advice would be beyond helpful💞