What do i do?

So I like this guy that’s in my class. We’re both really alike and have similar interests and we play sports in the same clubs.

Anyway lately him, me and two of our friends have been doing this like extension maths stuff together and it’s been really fun. Kinda getting vibes that he likes me as well BUT

We also all hang out together in like a big group of friends and I catch him looking at me or he’ll make a joke and then look at me to see if I’m laughing but how do I know if he likes me and not one of my friends???

We always have so much fun together and cannot stop laughing. But how do I know he likes me and should I ask him out???

I know this probs doesn’t make much sense but I have no idea what to do....