Your presentation will be more powerful if you refer back to at the end of your presentation to something that you did or said at the very beginning of the presentation. It will support the structure of your presentation to evidence that you have taken your audience on a journey and that something did happen since the start of your presentation.
For example when you start your presentation with a questions you can ask the same question at the end of your presentation and summary the answer that your audience now has based on your presentation. A quick reminder of the agenda that you presented at the beginning of your presentation may also be helpful to summarize what was accomplished during your presentation. Read to book that is part of the Public Speaking Kit for more detailed tips and tricks.
