Created by Anders Lindgren. Some of us love to give lectures. Others fear public speaking more than death. They are neither in contact with the audience nor themselves. They use PowerPoint as a crutch and limp nervously through their presentation. Not noticing that their audience are on the brink of being bored to death. Here is how to avoid the eight most common mistakes. To deliver presentation with power and punch, it is useful to be aware of the most common mistakes that even professional speakers make and how to avoid them.