Balance between openness & discreteness

If you appear to be easy to have you will become uninteresting. The same applies if you appear to be unapproachable, as this makes it difficult for a man to conquer you. Therefore, it is advisable for woman to keep a good balance between friendly openness and a light reservation. But this wisdom applies only for the case that it's all about entering a conversation with a man and not about getting rid of annoying guys.