Final answer:
It is true that another person could be used as a visual aid, serving as a live model which enhances audience engagement and understanding of the demonstration.
Step-by-step explanation:
The question 'Another person could be used as a visual aid if a speaker wanted to use a live prop for demonstration purposes.' can be answered as true. According to Albert Bandura's model of learning and demonstrations, a live model is someone who demonstrates the behavior in person, which could be utilized as a live prop during a presentation. Additionally, the use of other media and visual aids, like a live demo, can significantly enhance the understanding and engagement of an audience. It is important, however, to use these aids purposefully to avoid detracting from the speech's content.
When considering individuals with visual or auditory limitations, adaptations to the presentation must be made to ensure accessibility. For example, visual representation such as an infographic can help reach those who cannot hear a speech. Conversely, adapting the verbal content of a speech can aid those with visual impairments. Furthermore, practicing in front of a mirror to monitor gestures and facial expressions can make a speaker more effective by combining auditory and visual elements meaningfully.