Final answer:
Johnny's visible nervousness during his speech on stress management demonstrates a lack of integrated communication, where non-verbal cues do not align with verbal messages, reducing the speech's effectiveness.
Step-by-step explanation:
Johnny's speech on stress management fails to satisfy the requirement of integrated communication, which involves the alignment of verbal messages with non-verbal cues to effectively convey ideas.
In integrated communication, the speaker's body language, facial expressions, and gestures should support the spoken word to enhance the message. Here, Johnny's visible nervousness undermines his speech on stress management, leading to a disconnect between what he is communicating and how he is presenting the information.
Effective public speaking involves not only the content of the speech but also the delivery and engagement with the audience.
This requires control over one's physical responses to convey confidence and to appear credible. According to the principles of effective presentation, Johnny's nervousness likely detracted from the audience's perception of his expertise on the subject matter, thereby compromising his ability to connect with the audience.