Oh! I was just skimming through different RP groups ^^ I highly recommend creating the forum with the initial post stating a detailed story/plot and setting or the idea. Images are also pretty eye catching for lots. Have some rules put out as well just so players have an idea of how they would be playing the RP if interested. Basically, I just recommend setting up a defined plot that people will read and get interested by! Since, I think, some people like having a definite plot set up already rather than brainstorming ideas ^^ But that's just my recommendations! I suggest just looking through other group recruitment forums so you can have an idea on how to put out an initial post to catch people's attention!