how to use gesturesmake sure all your gestures are smooth and natural；
don't put your hands in your pockets；
let your hands and arms drop naturally to your se，gently fold both indes fingers together，without wringing or gripping your hands in any way；
let your hands do what they want to do as long as they don't go back into your pockets or make obscene gestures.
point at imaginary objects and don't point at others with your finger；
size or quantity can also easily be shown by expanding or contracting the hands；
gracefully show your audience the appropriate number of fingers by holding your hands at a 45 degree angle from your head；
to emphasize physical size such as length，wth，hold your hands out in front you wely apart to move them up and down.