(Moore, Parker, & Rosenstand, 2009,Ch. 6 More Rhetorical Devices: Psychological and Related Fallacies).
Demonstrative communication is when an expression made either by tone or body language. When it comes to nonverbal and unwritten communication facial expressions can demonstrate on exactly how the individual feels about the message. The response will be given efficiently because message was set up to allow receiver to give positive feedback. Demonstrative communication can be ineffective if the receiver misinterprets the message. An example would be when the receiver is from a different culture and the message is interpreted in a way sender did not want to convey. Thus the message deliverance is not accomplished because feedback from decoding message is negative. Demonstrative communication uses the influence of messages with tone of voice and body language with interpretation. Thus sender