Final answer:
Presentations should be clear and engaging with visuals that can be easily seen and understood. The rate of speech should be slow enough to be understood, while volume and pitch should be appropriate and used effectively. Good articulation is crucial for clarity.
Step-by-step explanation:
Presentations should feel and sound clear and engaging for the audience to understand. Ensure that visuals are large enough for the audience to see and provide clear, concise, and high-quality media. Rate of speech should be slow enough to be understood but not so slow as to bore the audience. Volume should be projected appropriately according to the size and location of the audience and the acoustics of the room, and can be used for effect. Pitch can be varied for emphasis or to communicate enthusiasm. Articulation is important for clarity and understanding.