If you think you don’t need a game plan before going into a confrontation, I urge you to reconsider.
While it’s true “every self defense situation is different,” that doesn’t mean you totally have to go in blind. Simple things can be done to help stack the deck in your favor.
Do you have your hands at your side or are you “talking” with them in a non threating (read: noticeable) manner? How are you standing? Are you flat on your feet or are your knees bent and feet slightly offset? Are you watching their hands, eyes or are you gazing “through” them ready to respond to any attack, high or low? What moves are you really, really good at? Are they power based or speed based? Which is more important to use in a self defense situation? How “universal” is the move or moves to be able to use against the widest variety of common (and not so common) situations or attacks? What other things can you do to help strengthen your game and have a plan in place?
… What is YOUR game plan?