Public speaking tip – define impact

What do you want the impact of our presentation to be?
That impact is not an accidental by-product of what you say and do. It is not something that occurs by chance, or through luck. It is something you create deliberately.  So before you think about what you will say and what you will do, you need to define what it is that you want to create.
What exactly is the impact going to be? In other words, you need to define:  
How will your audience respond to your speech or presentation?
What will they take away with them and remember?
What will they remember of you?
Why will they think “Wow what a fabulous presentation!”?