Speaking in public can become very hard and, as George Jessel said:
“The human brain starts working the moment you are born and never stops until you stand up to speak in public”.

Susan Weinschenk provides some simple advices to make the perfect speech:

1-A speech should not last more than 20 minutes.
2- Use multiple sensory channels like videos to keep the attention of the audience high for the whole time.
3-Use your body and your expressions to support your words.
4-Involve your audience in the action.
5- Share all your emotion throw the words by passion and emphasis.

Read the full article at:

http://www.brainpickings.org/index.php/2012/06/20/things-every-presenter-should-know-about-people-susan-weinschenk/

image: diplofoundation