In fact, these emotions are very important and parent should pay close attention to it: watch for cues, like facial gestures, the changes of behavior, body language. (attachfromscratch.com)
Kojima previously stated that Sutherland was brought in for Metal Gear Solid V because they wanted to convey emotions not only through dialogue but through facial gestures as well, suggesting that this was more a creative decision. (wccftech.com)
Even hours after birth, newborns have been found to show preparedness for social interaction that, among other things, is expressed in their imitation of facial gestures [8], [9]. (journals.plos.org)