We communicate a lot through the movements of our face - especially the layer of emotion. Also, the right hemisphere attends to facial expression more than the left hemisphere. Therefore, by priming our attention to facial expression, we prime our right hemisphere more, which leads to better comprehension and connection in general.
In the video below, I present an exercise for priming your attention to facial expression in the eyes and eyebrows. Be sure to carry this into your day, to spontaneously practice attending to this layer more than you normally do.