invites are only to known players. Until you begin to network with other players and eventually get to know all the major players in your region of the country you're pretty much stuck being a solo player.
so...how do you network players?...i can not walk up and say ...hello my name is..many of these players behave like ghosts....not so easy to network ghosts.....any ideas...
They will just seek you out eventually. Has a lot to do with your knowledge, reputation & ability. Answering questions intellegently on here is a start. If your well-rounded in the industry with knowledge and ability, they will find you.