Pixar Studios filmmaker Andrew Stantongave a good TED talk about a year ago where he states that one of the key aims of any good story is that it must make the audience care. "Make me care," he says. If you research the advice of famous directors and screenwriters of today and of years gone by you will find this is a common refrain: You have go to make the audience care. Presentations in all their many forms are never just about transferring information alone. We are emotional beings, like it or not, and to connect and engage people to the degree that they will care enough to listen to you, you have to evoke in them some kind of emotion. The TED talk below is well worth watching; the storytelling lessons in this short talk are many.