Keys to Confidence
A lot of your body language can show how confident, interested, bored, angered or nervous you are. Keep your head up throughout the entire conversation to show that you are very much into the conversation at hand.
You may feel free to use a few hand gestures to emphasize a point. If you're enumerating things, it's better to use each of your fingers as you mention each item to help your audience keep track.
Pacing will help you establish more ground if you have a larger crowd to communicate with. It will also show confidence on your part as you think of more things to say. Swinging your arms & walking tall are good indicators of confidence as well.
Safety Precautions
Avoid fidgeting or twiddling with different items like pens, coins & shirt buttons. Practice feeling comfortable having your arms stick to your sides. If you intend to depict a reserved attitude, you may cross them as needed but open up again with new & accepted ideas. You may sit if it is proper or necessary, but never slouch. Covering your mouth after you speak suggests a false statement or lying.
It is also not recommended to point a finger directly at your audience unless you intend to discriminate or accuse. Be very careful when touching the other person since you are crossing the boundaries of body language through actual contact. Remember that in body language, it is your body that does the talking for you. It is only fair that you dress well to properly send your message across without any unnecessary distractions. The power of body language is fascinating; please use it wisely.
Concluded
Source : DSDG