By declaring NAP, you have already forced(indirectly; by threat of force) me to behave in a certain way. NAP is a self violating principle.
You're cute.
No, it's not a self-violating principle. Let me explain. NAP stands for Non-
Aggression Principle.
Aggression is the
initiation of force, threat of force, or fraud against a person or their property. Therefore, the NAP states that starting a fight, or threatening someone, or defrauding them, is immoral. That's all. It's not forcing you to behave in any way. It's merely telling you that behaving in a certain way is wrong, and you should not do it.
Now, by extension, that means that
resisting aggression is moral. This means that if you threaten me with force, I can morally respond with proportional force. So, only if you pull a gun on me, do you get shot at. If you feel threatened by this, then that can only mean that you, under normal circumstances, would have pulled a gun on me to get your way. As such, that makes you an immoral person.
All you must do to avoid the use of force, is not initiate it. I'm not threatening you with anything you don't try to use on me, first.