There are some central areas people go to RP. The Inn is a main one, though I think the Herald population is a little slim right now. Heralds, btw, have cabal abilities that allow them to protect the bar, tossing combatents out and such. While joining a cabal like Fortress does throw you in the middle of PK and raiding situations, it also opens up a LOT of RP opportunities for you. Suddenly you have 30 some friends who instantly know you're an ally and a friend. Also, getting some sort of title (such as Acolyte of the Golden Sun) draws a lot of RP to you as people will come to you for help and such often.