One of the main features of the new Motorola devices is the Touchless Control feature, which allows users of the new Motorola DROIDs or the Moto X to issue commands or searches without the need to touch the device. Of course, after issuing the original voice-only command, you may need to eventually touch your device, which can be difficult if you don't know where it is...
Source: http://www.phonearena.com/news/Motorola-updates-Touchless-Control-with-find-my-phone-function_id48884
Source: http://www.phonearena.com/news/Motorola-updates-Touchless-Control-with-find-my-phone-function_id48884