[@PsychoNeurosis] Well I'll tell you how I started pretty much and pretend that is how everyone should. :P

So there are two sub sections in each section ( sections such as free casual advanced etc etc) one for role plays and one for interest checks. The role play is what it sounds like, a general folder for all role plays in that section. An interest check is essentially a little thread in which people say they are interested in a roleplay on a general idea outlined by the original poster. I would recommend looking out for any interest checks that you like and then joining the subsequent roleplay. Alternatively you could join an ongoing roleplay but my experience does not extend there. :)