Giving a speech or conducting a presentation is hard for any person to do; you need to engage with your audience and make them forget that they are learning. Do not misunderstand; you should be aiming to teach the audience as much as possible, but in such a way that no one is bored, nobody should feel like getting up and pretending to have heard every word.
From the moment you walk onto the stage, until your closing remarks, you will need to retain the full attention of your audience, and this all begins with the opening. Each audience will be different, which will cause you to change your opening, in order to suit the people you are speaking in front of. You can start your presentation with a quote, story, or anything that you believe will get the audience’s full attention. You will need to know how to get their attention fast, and you will need to maintain their attention – fully.