RPG is just role playing, which is just you playing someone in another place, basically you'll play a student at Hogwarts, obviously because this is a Harry Potter site.
Here is the link, which can be found on the main page, in Hogwarts, under Hogwarts RPG. Click
here to go and check out the RPG's. Just make yourself a character and read the rules and such.
If you have anymore questions ask, or PM either myself or another admin/mod.
- Andi