When N lives in the muscle or the myo- stomach with the thumb with other finger relative N, along its outline, and follows its trend, each figure of pliers extension pushes searches for advances.

时用拇指与其他指头相对N住肌肉或肌肚，沿其轮廓，并循其走向，各指钳转挤搜而推进。

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To prove it, the company introduced a virtual lightsaber to a subject, tracking his swordsmanship perfectly and using his thumb extension to turn it on and off.

ENGADGET: Sigma R&D shows Kinect sign language and Jedi savvy to win gesture challenge (video)

Often we accept people into our social networks by extension of trust, i.e. a friend of a friend, so a good rule of thumb might be to question how well you really know a person before accepting a new friend request.

FORBES: Be Careful Who You Know