In RIchareds TED talk he showed us and talked about how his community had trouble keeping the lions away from there cows. one of His messages that he got across was that even though you may not succeed you keep trying. which meant to me that just because it may not have gone your way at first you have to work hard for it.
He got his message across to his audience by sharing some jokes with them to make them more engaged and more focessed. He also had pauses to let them guess in there heads what he would do to fix this problem.
He used a microphone for his voice to be louder and he also used a screen at the back of the hall (so he could see if the slide had come) and one behind him so he show how series and passent he was about it.
He used a clicker to match his slides with what he was saying.