You'll be a more effective communicator if you listen to the entire message. Having the ability to speak clearly and effectively pays off in every walk of life, from acing job interviews to working as the president of a successful corporation. The ability to write and deliver a speech also is of enormous value, partly because there aren't a whole lot of people who can do it with any skill or grace. It's what you do with the fear that counts. They convey an important message and prepare thoroughly.
Effective speakers listen closely to what others are saying.
They process what they have heard and avoid common listening faults. The ability to speak clearly, cogently, and competently in public pays off.