Final answer:
Giovanni is establishing credibility by maintaining eye contact, which is a key aspect of nonverbal communication for engaging with an audience and demonstrating confidence.
Step-by-step explanation:
As he delivered the introduction to his speech, Giovanni spoke fluently while maintaining eye contact with his audience in order to convey a sense of confidence. Through his behavior, Giovanni is establishing credibility.
Eye contact is a critical aspect of nonverbal communication that helps to build rapport with the audience. It communicates comfort and establishes credibility, indicating engagement and attentiveness.
Moreover, proper body positioning and facial expressions complement the speaker's words, enhancing the persuasive power of the speech. A balanced use of gestures and expressions, paired with consistent eye contact, can help a speaker connect with their audience, making the message more relatable and convincing.