Boys 😩😩

Ok so there’s this guy at my school who’s a junior. I’m a sophomore so we have no classes together and non of the same friends.. but we go to the same SMALL school so everyone kinda knows each other. The past three nights we’ve talked on snap for like an 1-2 (we have a streak as of a couple days again) but we have never talked before this. He hmu because I put to swipe up for a tbh on my story. I think he likes me and I like him.. I just feel so awkward at school because I see him but I’m always w friends and so is he. (I feel like he looks at me...) what should I do?? Make convo... smile at him? What ??!!! So stressed lol