If you fear public speaking or need help with writing a speech join Rostrum. They have clubs all around Australia. I joined five years ago. Rostrum helps you find your voice by clubs setting out topics such as general business, debates, pertinent questions, reading short stories and you can even be a chairman.
The meetings are always fun, full of laughter and always different. They provide you with a mentor and at the end of each meeting there is a critique which provides feedback on what went right and ways to improve.