Hey! You! Listen up!1. Don't be inane. By that I mean don't post with a "me too" or a "yay!" It makes you look like a simpleton.
2. Fight the urge to kill everyone you see. If you just start doing things to people, without giving them a chance to respond, you'll most likely make someone pull out the ignore-a-tron.
3. Don't just assume that your shite works. Someone might just be immune, and worse, they might take offense at you thinking that their character would be affected. TRY to do things by all means, but don't just assume they happen.
4. Give the person you're attempting to interact with a chance to interact back - otherwise you're just gaming with yourself (which sounds kinda dirty).
5. Keep it PG-13 unless the thread specifies otherwise. I'd most certainly ignore someone that sodomized corpses, raped, or f*ckin' cussed all the d##m time. C'mon, you know how I am about that stuff. :)
And always remember: ICA = ICC. In-Character Actions mean In-Character Consequences. You have been warned.