I like this guy from youth group

So I'm quite a shy person and I like this guy at my youth group. He's real outgoing and talks to literally everyone. He'll smile and say hi or bye to me and he'll sit next to me sometimes but thats mostly it. And he keeps making eye contact. Well I want to start actually talking to him but im not really sure how. We usually sit in groups and i dont want to just talk across the room to him. But i also dont really know what to say. So yeah kinda ranting but i highkey need advice