A fourth common mistake that speakers make when they have to speak on the spot is poor body language. Body language is an essential part of nonverbal communication that can help you convey your message, emotions, and personality to your audience. Poor body language can make you appear nervous, uncomfortable, or unprofessional, and also make your audience feel uneasy or confused. To avoid poor body language, you should stand tall and straight, with your feet shoulder-width apart and your weight evenly distributed. This will help you look confident, balanced, and stable, as well as help you breathe better and project your voice louder. Additionally, use gestures to emphasize your points, express your emotions, or illustrate your ideas. This will help you look dynamic, engaging, and passionate, and also help you reinforce your message and create visual interest. Lastly, avoid crossing your arms, putting your hands in your pockets, fidgeting, or touching your face or hair. This will help you avoid looking defensive, insecure, or distracted, and also help you avoid sending mixed or negative signals to your audience.