Get to the punchline as soon as possible

In stand-up comedy, those who are successful deliver the first punchline in the first 15 seconds. The second punchline is delivered in the next 15 seconds. This earns you the right to speak for a longer duration before the next punchline.

When you're pitching an idea, don't start with information your audience already knows. Instead, throw in your teaser immediately to make them interested in listening to the rest of your pitch.