What should I do? Please help?

Um so I don't know how to say this but I'm scared. Scared of so many things but I wanted to ask for a boys number but I only see him on Thursdays and I have no clue how to ask so I was hoping someone on here did. Could you help me? (Btw I'm 13 and so is he) but I see him every Thursday for youth group and we both liked each other in the past and I have no clue whatsoever if he likes me still. So could you just help me?