It is said that the number one fear of most people is public speaking. Therefore, if you are good at public speaking you can attract a crowd and even make some money doing it. If you're talented at speaking in front of mass audiences, you should consider developing a public speaking a business.
Decide what niche you want to specialize in. Most public speakers specialize in a certain topic or area of interest and cater to individuals interested in that niche.
Register with the IRS as a sole proprietor. You may fill out forms from the IRS website or call the IRS with the request. You will need to provide your name, address, phone number, social security number and business address (If different from your home address.)
Develop speeches and presentations you want to deliver. Consider taking a refresher course on speaking at your local community college.
Find gigs to perform. You may have to start by speaking for free at colleges, high schools or libraries. Eventually, you'll be able to attract a paying audience.