6. The rule of three. The rule of three is one of the most memorable patterns. Think "location, location, location"; "life, liberty and the pursuit of happiness"; or three-word slogans, such as "Just Do It." Here are a few examples of how speakers do it. Jeremy Gutsche , CEO of , ends his speech on innovation with three key benefits: "By leveraging viral trends and methodical innovation, you can generate ideas, harness creativity and ultimately exploit chaos." Dianna Cohen , co-founder of the Plastic Pollution Coalition, ends her talk on plastic pollution with a three-pronged declaration: In using alternatives to single-use plastics, Cohen says, "We can save our oceans, save our planets, save ourselves." Alan Siegel , a brand identity consultant, also uses the rule of three to end his speech on simplifying legal language: "How are we going to change the world?" he asks. "Make clarity, transparency and simplicity a national priority."