Which of the following techniques can improve nonverbal communication during a presentation?

Improving nonverbal communication during a presentation is essential for engaging the audience and effectively conveying your message. Practicing posture and gestures directly enhances how your audience perceives you. Good posture conveys confidence and openness, while appropriate gestures can emphasize key points, making your delivery more dynamic and relatable.

By being aware of your body language and practicing it ahead of time, you can ensure that your nonverbal cues align with the messages you are trying to communicate verbally. This alignment helps to reinforce your message, making it more memorable and impactful for the audience.

In contrast, the other options do not contribute positively to nonverbal communication. For instance, talking quietly may hinder your audience's ability to hear and focus on your message. Wearing sunglasses can create a barrier between you and your audience, making it difficult for them to read your facial expressions, which are crucial in conveying emotions and sincerity. Using a monotone voice strips away vocal variety, which can make your presentation feel flat and unengaging, diminishing the effectiveness of all forms of communication, verbal and nonverbal.