If there’s one rule every LARPer knows, it’s this: act like your character, not like yourself. It is more important that costuming, combat or mechanics. Without it, LARP would be an unmasked, ego-centric game of nerdball.
Except that IC doesn’t really exist. It is an illusion, one which prevents us from addressing real problems, and until we toss it in the garbage and examine IC vs OOC critically, we’re dead in the water.