Well I just explained this to Zeriah, and so I guess I'll post this for anybody who doesn't know how to rp or has never tried it before! Pretty much what you do is first you make or pick a character from a list or what you think up, and act as that person so like if I was....Joey, and I was trying to survive a zombie attack, while trying to save my wounded friend from getting killed, it would pretty much be like this
Oh yes, and by the way I suggest you do thoughts in italics, and actions between two spaces like this -fhdis- regular talking can just be regular typing with nothing added on, and so on so forth, but I also suggest if you have someone inside you or something...pervs -_-....like Sakura, and her inner self for example you use bold for that person talking to the host (Like Sakura is the host of Inner Sakura)
Ex:
-Jumps away from the group of zombies, while looking over at Steven (My friend)-
Dammit! This isn't going to work! I can't get over to Steven without going right through the zombies..-Looks around, and sees a rather thick tree branch-
This will have to do!
-Picks up branch, and charges at the zombies-
GET THE HELL OUT OF THE WAY!
YEAH YOU GO GET EM!!!-Stops-
W-What...the hell was that? Oh yeah! Kyuubi decided to put a demon inside you for his example!Oh....ok
-End Ex-
Well I hope I helped you guys understand what rping is and how you do it

Well have fun, and go pretend to be someone you're not! XD