please don't get into that take time just take god damn time, currently there are so many breakup happening and I don't want you to get hurt, just take time take hints from him , know about him, if you are thinking that one day you will take it seriously further then just check all things how is he keep your excitement inside for a while just know everything about him don't stalk him don't just be mad like crazy but whoever you wanna be with make sure you check everything bcz future my girl people society guy always turn back so just be cautious and careful before getting in relationship also don't be stress yar take and think it slow and if it happens don't worry about professional just be careful and enjoy every minute of your life but carefully that's it.

god bless you

Try befriending him unofficially. Know him more, and then accordingly at the right time propose him