You need to have three things clear in your mind before giving a speech: your main idea, your audience, and your objective. Start preparing by focusing on your idea: Why are you the right person to deliver this talk? What unique perspective can you offer? Then, consider who will be in your audience and craft your talk with them in mind. For example, if you’re speaking on a small panel, you can frame your remarks in more intimate, personal terms. If you’re at a conference for professionals, you can use technical terms. Speaking the same language as your listeners increases the odds that they will understand and be inspired by you. And finally, make sure you’ve pinpointed your objective. Maybe you want to get the audience to donate to a worthy cause, or spread the word about the importance of your topic. Whatever your goal is, it will inform your preparation and delivery. Ref from “To Give a Great Presentation, Distill Your Message to Just 15 Words,” by Tricia Brouk