I watched a video this morning (which I have shared below) giving 3 tips to becoming a better speaker. Malachi Talabi - 2011 UK & Ireland Public Speaking Champion relates public speaking to football (soccer.
To be a good public speaker you need the following:
Control - particularly when delivering an emotional speech - control in your movement, your gestures, your pace, and your vocal variety
Skill - to take raw talent to spectacular you need to practice
Process - get information and then take things a step at a time
To your success as a speaker
Fran