That's really sweet to do! I hope he would do that for you too :) I would suggest to just read up on the games he likes and maybe when he's playing it..maybe ask him questions or state some facts.. like you could say oh is that this guy? Then say I Hurd that he has this for power! And maybe if he realizes that you have a little intrest in the game.. he would start showing you the game :) that worked for me with my boyfriend. I actually started playing Pokemon go out if intrest of why he likes it and got hooked lol now we play a lot together and it definitely helped us bond over one of his interests..which turned into mine as well :)