An example of extemporaneous speech would be an informative or persuasive speech made after hard work researching, organizing and assembling a cogent text. For an extemporaneous speech to be successful, it must grab the attention of the listener in the first few sentences and then move to the topic, providing several areas of analysis that give depth to the response, with a compelling conclusion at the end. Sometimes extemporaneous speakers use index cards as a guide, but many speakers simply go from memory.
While extemporaneous speech often appears spontaneous, the best speakers come across as loose and relaxed while making their delivery, but behind the scenes, they have done their homework and prepared a solid speech. It helps to know one's opening sentence beforehand, and then to have a script prepared to take the speaker the rest of the way. It is not necessary to have this script on paper; having it in one's memory is acceptable. Knowing the main points to go over is crucial for speakers who want to accomplish their purposes ably. Understanding the conclusion is the most important part because that is what audiences take away with them. Even if a speech includes a question and answer session, it is important to save a strong conclusion to wrap the occasion up with after the last question.