The way we communicate with others and with ourselves ultimately determines the quality of our lives." - Anthony Robbins
Let us first understand what I mean by assertiveness; assertiveness means you need following two qualities in your communication:
1 You speak with energy in your voice.
2 You are not frightened to say what you think or believe.
In nutshell, speaking with energy and confidence is assertiveness
Now the most important aspect, why we need to be assertive or what assertiveness can do for us:
1 When you are assertive, you make good impression on others;
2 When you are assertive people perceive you as confident communicator;
3 With assertiveness you can convince people with your point;
4 Moreover this is the foremost quality of communication which impress call of us; so we can also make influential communication with assertiveness.
Speaking without energy and confidence is like having food without salt and sugar.