Assertiveness is the ability to directly and honestly
express your opinions, feelings, attitudes and rights.
It is to do so without anxiety and in a way that doesn't
infringe on the rights of others or violate another person's integrity
It's not aggressiveness, it's a middle ground between being a bully and a doormat.
It's dependent on a feeling of self-efficacy. a sense that if you behave in a certain way, something predictable will occur