Earn a professional certification in areas including business, science and technology.
Build a reputation as an expert by serving on panels or writing articles related to their subject area. Those aspiring to be public speakers can also write books or research papers on their specialty subject. Professional speakers should also develop marketing materials such as a website or blog.
Verbal communication skills is essential.Practice public speaking. By practicing you can learn how to best communicate their points and can find out what common questions audience members may have.