Explain what you’re doing. Get rapidly to demo. Better a narrow description than a vague one. Don’t talk and drive. Don’t talk about secondary matters at length. Don’t get too deeply into business models. Talk slowly and clearly at the audience. Have one person talk. Seem confident. Don’t try to seem more than you are. Don’t put too many words on slides. Specific numbers are good. Tell stories about users. Make a soundbite stick in their heads.

How to present to Investors – [Paul Graham]