Know your topic by heart. As much as possible, write your own introduction. This will add to your credibilty and will help grab your audience attention. But make sure you write only the facts. Be a story-teller.
Stories are the best way to illustrate points.
Use stories and don't totally rely on statistics, data, charts and quotes too much. All audience love humor. Whether you are giving an annual update to a group of shareholders or participating in a weekly meeting - a little levity or wit will warm your audience to you like nothing else. Remember that everything we do in life requires communication with others. Success often hinges on how well we understand others and how well they can understand us.