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how to use gesturesmake sure all your gestures are smooth and natural；
所有的动作都应该流畅自然；
don't put your hands in your pockets；
不要把手插在口袋里；
let your hands and arms drop naturally to your side ，gently fold both indes fingers together，without wringing or gripping your hands in any way；
将手和手臂自然地在身体两侧..