Don't let your hands or arms get stuck at any point.

不要让你的手或手臂在任何时候卡住了。

youdao

Gestures should appear definite rather than as accidental brief jerks of your hands or arms.

手势必须要明确，不能看起来像是你的手或胳膊的暂时抽筋。

youdao

Everyone kicks or touches a round ball without using the arms or hands.

不用手臂和手去踢或触到一个圆球。

youdao

They try not to pull themselves up with their hands or arms.

VOA: special.2009.12.09

His hands are open, his palms are open and turned toward you, and his torso is exposed rather than protected by his hands or arms.

FORBES: Body Language Quick Takes: How to Spot Openness

The ball should start on the ground but any part of your body can come into contact with the ball except your hands or arms.

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By contrast, people who are defensive or angry may protectively fold their arms across their chest, clench their hands into a fist or tightly grip their arm or wrist.

FORBES: Body Language Savvy for Sales