How do I get this friend to add me on snapchat without telling him to?

Maybe start to consistently talk to him on another boarder if it’s Facebook, gmail , via text message, Instagram etc. have a consistent conversation, when that conversation starts to move, I would through out there “do you have a Snapchat” if he responds to “ yes I do “ “ yeah” “why” I would answer “ cool me too!” “Same!” “ I like to talk on Snapchat” those responses will be positive and hopefully work! If they don’t then I would suggest sending him some fun, positive photos with your user attached to them and would see what he says 💕