Speakers can bring a speech full circle by

One way to bring a speech full circle is by starting with an anecdote, or story. The best anecdotes are personal and memorable by making a joke or being something semi-tragic. This draws in the audience: making them more alert and responsive to the following subject matter. In the conclusion of the speech draw once more from the anecdote in just a word or two. Make sense of the subject matter while drawing a succinct conclusion. This is how one brings a speech full circle.