" Well Hello Halo! It is human nature for us to make generalized judgments about a person using only a couple of traits. The "Expressivity Halo" Theory explains how we connect various personalities to specific facial expressions and assign assumptions about that person. "

― Susan C. Young , The Art of Body Language: 8 Ways to Optimize Non-Verbal Communication for Positive Impact (The Art of First Impressions for Positive Impact, #3)