How to stop saying “um”, “ah”, and “you know”
hbr.org
hbr.org
I agree that preparation is everything. It can mean different things for different people though. I have found that preparing a speech by writing it out and memorizing it does not work for me. What does work, is knowing as much as I possibly can about the subject matter, having a short list of the talking points or story and most importantly, the key message(s) intended for the audience.
Finally, have fun speaking. Be enthusiastic about what you are saying and put that energy in your voice and your gestures. Again, this doesn't only engage, it also makes one more comfortable speaking.
I've noticed myself that I've done it a few times.