When you write a presentation, it can be helpful to have a real person in mind that you need to convince. With real I do not mean the actual sales prospect you are going to pitch to next week, but someone who you know better, personally.
The hard-nosed venture capitalist, the hipster designer, the over-loaded IT manager, the stylish marcom lady, the social media expert, the alpha-male sales director, the super-bright hedge fund manager, the Israeli wheeler-dealer, the geeky startup founder, etc. I have a cast of characters who always travel with me and are always willing to receive a mental pitch.