Final answer:
The answer to the question is false, as speaking impromptu, while natural, may not always be the most effective way to deliver a message. Preparation and practice are necessary to maintain audience engagement and to manage natural gestures and expressions that can either enhance or detract from the message.
Step-by-step explanation:
Speaking impromptu is often seen as the most natural way to deliver a message, but this may not always be true. While impromptu speaking does allow for natural engagement through gestures, facial expressions, and eye contact, which can make the speaker seem relatable and build trust with the audience, it's also true that these expressions can become distractions if not used purposefully. Preparation and practice are key to delivering an effective speech. With the knowledge that an adult audience's attention span is about 20 minutes, it's important to craft your message to maintain their attention. Furthermore, in the age of social media, messages are often short and simple to grasp the audience quickly. Hence, the claim that speaking impromptu is the most natural and effective way to deliver a message might be misleading, as practicing and preparing your speech are crucial steps to ensure fluency and clear communication without distractions such as verbal fillers. This highlights the importance of a balanced approach to public speaking.