First concept to understand and keep in mind is that there are no functional projects or ideas. They all must contribute to the overall business success and should always be presented and implemented in that way. Additionally, you must know your audience; establish trust, familiarity and context with those you are presenting/pitching to and show them data (simple and visually appealing) supporting the business value you are interested in delivering.
Finally, once again, remember that there are no functional projects as everything we do must be in sync towards delivering exceptional business value to our clients and partners.