Any tips on how to ask for someone's snap?

I meet this guy while playing badminton... he gave me good competition (it's been a while since I actually had fun like that) I really wanted to ask for his snap but i couldn't bring myself to ask... but now, next time I see him on campus I'll find the courage to exchange snaps with him... any tips on how i should approach him?

Any tips on how to ask for someone's snap?
Post Opinion