Your audience has just finished a big meal, the lights are low, and the room is fairly warm. Limit your message to three main points.
People remember three ideas at most.
Providing more information may provide entertainment value, but we can't expect it to stick. Use visuals that support or clarify your message. Stop on time or even ahead of time. People like getting done early, and they'll be more likely to stay focused instead of checking the time. They encourage people to stop listening.