If you want to succeed in business, you need to be comfortable speaking to your boss, a new client or a room full of potential investors. How do you get over this?
The biggest aid to comfortable public speaking is to know your subject. The more comfortable you are with your subject, the easier the flow of speech. You also need to be able to relate to people by providing something of interest to them. You cannot talk about the rising cost of kumquats if you are speaking to a group of architects (unless they are building a storage facility for kumquats.)
When speaking to a group of people, you want to look them in the eyes, not read from a prepared speech. Eye contact engages people and makes them feel as if you are inviting them into a part of your own life. Look around the room and make direct eye contact with different individuals, don't just scan the faces. Talk to them, and not at them. They will feel part of your inner circle. Finally, NEVER talk down to people. Your audience will tune you out, if they don't simply walk out on you.
If you still need help, look at joining an association geared to helping you improve your public speaking abilities. My favourite group is The Ruskin Literary and Debating Society. It has been around for over 100 years and current and past members include lawyers, politicians, students and business people of all stripes. If you aren't ready to join a group, contact Giraffe Graphics. We can help by coaching you in the finer points of speaking in public. Rid yourself of the terror of speaking in public and the payback will be enormous.