The adult may not explain the rules and expectations beforehand, but reacts according to mood. How a person responds to conflict is called conflict resolution. Successful resolution of conflict depends on if the people use effective or ineffective strategies. An effective strategy is taking turns. See the section on Conflict Resolution for more information.
Kids learn by watching what others do, and the consequences of what others do.
Kids especially imitate adults who the children admire and look up to. Also see the section on modeling . Boys are more likely to use this aggression. Physical aggression usually decreases as kids get older. Assertiveness means self-reliance, boldness, or standing up for your beliefs.