Right then.
Rules generally go by the following (many are unspoken, some are changed by the GM, but generally this is how things end up working):
-First person is rarely used, if ever. Some folks go so far as bashing it. If you're a first person kind of guy... hate to scare you off, but there aren't too many of that sort of mind.
-Fights, actions, the like that affect other characters go like this typically (in an ideal situation): One person posts what they intend to do (y slices at x's leg, intending to sever it) and the other person accepts it as they will (x dodges, x is severely wounded in z spot, etc). If you have a high enough degree of trust with each other you might be able to get away with performing minor actions without waiting for an extra post responding to it.
-I suggest starting off with a free RP of your choice (if you're accustomed to a slightly higher standard, there are threads there and posters that do go beyond a bit). They aren't very high-key and get you attuned to how things on the site work. As you grow more comfortable, try casual; it's probably the most diverse section and for me is the best balance. If you want to spend time putting high amounts of depth into things, don't mind reading extremely long posts, and/or don't mind making such posts, advanced might be an option. Tags on the top of the thread you're in (in the roleplay sections) indicate which level is expected if you find yourself in a 1x1 thread or something in the nations forum. Specific rules do vary.
-If you're unclear about anything before joining or have quirks that may or may not fit in, ask. It helps :)
-Magic systems, except perhaps in tabletop or some advanced ones, are typically freeform and depend greatly on the preference of the GM around here.
-Have fun. You will learn soon why there's only happy people on here... the ones that aren't are removed.
