The Geico gecko, the AFLAC duck, and Jared the Subway sandwich guy all have the same job. They are likeable characters who appear in very short stories (ads) on TV.
The gecko is low-key and sensible while his boss, the CEO of Geico, is driven by his irrational exuberance to come up with dumb ideas. The gecko fights corporate silliness and keeps it simple and quantifiable (“you can save up to 15%.”)
The AFLAC duck is also surrounded by idiots who don’t have the common sense to see that the only solution to their problems is AFLAC. His outrage (and his limited vocabulary) are comedic and charming. We want to do business with him.
And Jared is all of us who are concerned about our weight. He has found the simple solution to the problem, and is now living the good life in the company of celebrities and star athletes.
Gecko, duck and Jared are personifications of a brand. They demonstrate the benefits of their brands by successfully struggling to overcome obstacles.
You can use the same technique to make your presentations more persuasive. Your ideas, products, and companies can also be seen as solutions to problems.
You may not have the creative license or budget to create a mascot and an endless series of ads, but you can think about what obstacles your idea or product must overcome, and then describe how your idea, product, or company struggles to conquer those obstacles.
In this way, you are emulating the best professional persuaders in the world.