Uh nothing really, just find something that interests you and head there, i.e. Comic-Con. Afaik you wouldn't unless its a cosplay thing
That, or ye olde gaming club
Also no real need to hide your preference for games. If they still have this seated belief about how its a soul destroyer essentially and ignore the evidence, odds are it will translate to other things. The new entertainment medium has often been heckled, and its not something you should worry about in all honesty.