What key aspect of effective speech delivery helps to clarify the performance?

Gestures and body movements play a crucial role in effective speech delivery as they help to enhance understanding and engagement for the audience. When speakers incorporate appropriate gestures, they can emphasize key points, convey emotions, and add visual elements that complement their verbal message. This not only aids in clarifying the content being delivered but also keeps the audience's attention, making the performance more dynamic and memorable.

The use of complex vocabulary may create confusion rather than clarity, especially if the audience is not familiar with the terms. Rapid speech can lead to misunderstandings, as listeners may struggle to process the information being presented. Reading from notes can detract from the natural flow of communication and diminish the speaker's connection with the audience, ultimately reducing the effectiveness of the delivery. In contrast, gestures and body movements facilitate clearer expression and foster a more impactful performance.