well, i’d say it’s probably a lot of being in the right place at the right time. a lot of fans meet the boys by greeting them at the airports and outside music shows/radio shows to give them fan gifts. and there’s also fan meetings/fan signings as well. though, from what i’ve heard, getting into those can be a little difficult, depending on the management and how they go about choosing who will attend. 

i wish i had a better answer for you! unfortunately, i’ve never been able to meet or see any of the boys in person, so i don’t have any first hand experience! :’c