Have you ever been bored rigid by a conference speaker? How can you avoid that fate if you have to give a talk? Here are the worst sins that speakers commit. Be sure to avoid them.
I have only been speaking professionally for a short while and I certainly have had my eyes opened to what hard work has to go into it. Beforehand, sure I stood up and spoke publicly, but I would simply stand up and tell my story. There was no craft to it nor did I think about what message my listeners might be taking away with them.