The third aspect of vocal delivery is to align your body language with your voice, so that your audience can see and trust your message. To do this, you need to pay attention to your posture, gestures, eye contact, and facial expressions. Posture is how you stand or sit, gestures are the movements of your hands and arms, eye contact is how you look at your audience, and facial expressions are the emotions that you show on your face. You can improve your posture by standing or sitting straight, but relaxed, and by avoiding slouching, fidgeting, or leaning. You can improve your gestures by using them to emphasize or illustrate your points, and by avoiding overdoing or repeating them. You can improve your eye contact by looking at different parts of the audience, and by avoiding staring or looking away. You can improve your facial expressions by smiling and showing enthusiasm, and by avoiding grimacing or scowling.
By improving your vocal delivery and body language, you can enhance your communication skills and make a lasting impression on your audience. Remember to practice and rehearse your speech, and to get feedback from others. You can also watch and learn from other speakers, and observe how they use their voice and body to communicate effectively.