Body language
You definitely have to pay attention to your body language. It is a very important thing.
Good posture reflects confidence and engagement with your presentation and your audience. Gestures add interest and emphasis to your presentation.
Practice gestures as part of your presentation preparation and they’ll come easier when you present.
You should stand up straight, with your legs at a shoulder width apart and your weight evenly distributed.
Don’t forget to make eye contact. One of the best ways to keep your audience
engaged in your presentation is to maintain good eye contact.
Making an eye contact with a person and speaking to them can make you calm down if your feeling anxious.