3 ways of engaging an audience in Public Speaking

Taking a course at University of Phoenix online on public speaking.  I will tell you 3 ways I would engage an audience.
1) Start speech with a question for the audience. I know that when
I hear a question, I peak my ears. 2) Use pauses.  I saw Israeli prime minister Benjamin Netanyahu give a speech before the UN
a couple weeks ago and he used pauses in a masterful way. I can't hope to be such a great speaker but I see that pauses can be good way to keep audience mesmerized.  3) Quiz the audience. I learned this from my instructor in this class, Lee Melancon.