This is a topic which is mentioned briefly in many other articles here but not dealt with directly. Given that this is one of the first things we teach new members to my various roleplaying groups I thought I would post about it here. Put simply, this is a problem with immersion. One way to think about this problem is from the other side of it. Have you ever been watching a movie and thought, why the hell aren't you running away? Or don't go in that room, why would you go in that room? Those are instances of you using your viewer (read, player) knowledge to determine the best course of action. In each case, you have knowledge that the character you are watching does not. For instance, that he is in a horror movie. This seems like it would be easy to do, we are all here to play the role of our character after all. But there are subtle things you have to keep in mind. First and foremost is that, unless you're playing a mind reader, your character should never act on the thoughts of another character. The reverse of this is, if you want your character's thoughts to be apparent via non-verbal cues or what have you, one must say so. You have as much of a responsibility to be clear about what is visible to others as they have of respecting what is hidden. This goes along with the general rule against god-modding. For those who are not familiar with the term, it refers to both making a character that is overpowered and has no weaknesses, as well as the act of controlling another players character. It is the difference between writing "Dan punched Steve in the chest" and "Dan threw a punch at Steve's chest." In the former, the guy playing Dan just decided that the character Steve would not dodge this punch. This is not fair to the other player. In the second case, Steve's player can decide if he gets hit, dodges, or becomes a daisy for no reason at all. This is very similar to CK vs PK, here is an example. Player1: Sally thought Billy was rather cute. She was new in town and was hoping he would show her around. She walks up and says, "Hi... Billy, right?" Player2: "Hey Sally, you want me to show you around town?" Okay, I am not very clever with examples, but clearly Payer2 is using knowledge his character should not have in his post. How might he have said the same thing without being in gross violation of Sally's privacy? Ex, P2: Billy recognized the new girl in town as she walked up. He thought she was kinda cute. "Hey, yeah, that's me," he said, "good timing too... I was wondering if you wanted to go into town or something. C-cause you're new and all, I figured you might like a tour or something." he blushed as he spoke. Generally speaking, if you can explain your characters actions based on knowledge they should have or could reasonably guess it is fine. But a complete newbie to combat knowing complex formations and enemy weak points is silly. Honestly, what this really boils down to is learning to play a good character and see the world through their eyes. The more you know about your characters past and their present the better role player you will be. I am sure this is all very convoluted, and I'd be happy to edit this or move it to a more relevant topic if admins and such would like. But what I would like from you (if you're still reading) are your thoughts on this issue. Have you run into this before? What are some good or bad examples of this? How do you deal with players who break this rule? Are there right ways to go about breaking it? Whatever feedback you have is much appreciated.