Don't Be Yourself

One of the most important things to remember when playing a Live Action Role-Playing Game is that your interactions with other Players are not to be determined by your own morals or view of social norms. When you are playing your Character, it is their wants, needs, and personal beliefs that should be the basis for your interaction. If you can managed to keep yourself tuned into your Character and able to express their feelings and actions, then you will have a good deal of stories to talk about enjoy at a later date, and everyone's enjoyment of Game will increase due to the interaction.

You see, you're supposed to be the embodiment of whatever Character you are playing at the moment... a conduit for them to express themselves because you're the only way they have to speak with these other Characters played by the other Players. You should respond to other people like your character would respond to their character, and never let arguments from Out of Character (OOC) travel over into In Character (IC) or visa versa. Keeping agreements or differences in opinion separate between IC (the Characters) and OOC (you and your fellow Players) is the sign of a good RPer.

When you get down to it, the most important thing to making a believable scene is the separation of Character from Player. You shouldn't be worrying about what another person might be doing to you, using their character. You should really only be concerned with what that other "person" (IC) is going to do to "you" (IC). If you try to see the reasoning as only the motivations of a Mun (a Player), then you're going to be enjoying game far less. When all else fails, force yourself to believe that the reason they are doing something or know something IC is because of information they've gotten IC (inaccurate as it might be).

Furthermore, if you end up trying to do things IC for OOC reasons, the other Players and the Storytellers will all call you on it. If you actually end up killing another Character for OOC reasons, then you best believe that our Storyteller (ST) will find a reason to take your character out of Game too. That kind of crap will not ever be tolerated at this game and Players who proceed in such endeavors may be asked to leave¹. Maybe permanently.

Secondly, it's important that you have fun. If you are not having fun, approach the ST with your concerns about what's happening with you or your character. I can reassure you that the ST would be much more interested in you having fun than you not having fun. This also includes if you are, in fact, having trouble with another Player and cannot work it out with them OOC. If that happens, then approach the ST with the trouble as he may be able fix the situation or explain to you why something is happening IC. If you ever fear that someone is using OOC motivations for IC actions, consult with the ST and he may be able to either look into the situation or tell you, "No, that character has reasons for thinking that." Ether way, he can take care of whatever it might be that's troubling you.