IC

From Anstepedia

IC means In Character, and refers to everything that a player's character does, or says. In essence, it's what you roleplay. 'Being IC' refers specifically to that: you are IC, which means that you are roleplaying your character, and the text that you type describes what your character says and does.

The more often you are IC, the better! We like to keep OOC to a minimum.