Roleplay, often used as a verb. IE: Is anyone in here RPing?
These are styles of roleplaying, that which is one line long, that which is one full send on the chat, and that which is multiple sends on the chat respectively.
Out of Character - Is usually used to refer to things that are not happening to the characters and/or someone has a comment about the real world and they need to inform the other players. There are many indicators of OOC such as parenthesis and the thought actions in the chat room.
More coming soon.