<prompt> Translate the following text to EnglishAUs, ambazo kwa kawaida hutambuliwa na misuli ya uso ambayo hufanya kazi hizi mbalimbali, ni zana zinazotumiwa katika What the Face Reveals.  <response>: These AUs, usually identified by the facial muscles that perform these various tasks, are the tools used in What the Face Reveals . To look at a few examples, click here and here. 