Final answer:
A useful tip for creating a speaking outline is to use abbreviations for brevity, allowing the speaker to be clear and concise.
Step-by-step explanation:
According to the book, a useful tip for creating a speaking outline is to use abbreviations for brevity. This allows the speaker to quickly reference their points without needing to read long, detailed notes. It's important to be clear, concise, and to the point in your speaking outline. While bullet points can help list key ideas, it’s the use of abbreviations and keywords that enable the speaker to deliver their speech effectively without being tied to a fully written script. This way, the speaker can maintain eye contact with the audience and keep the flow of the speech more natural and engaging.