Final answer:
Eye contact is a nonverbal communication technique that builds community, communicates comfort, and establishes credibility. It can help hold an audience's attention during a speech.
Step-by-step explanation:
Eye contact is a nonverbal communication technique that builds community, communicates comfort, and establishes credibility. It can help hold an audience's attention during a speech and is advisable to begin a speech with eye contact. However, maintaining constant eye contact for long periods should be avoided. Direct eye contact while greeting or conducting a conversation indicates engagement and alertness.