It’s one thing to understand the expressions of individuals; it’s another to decipher the tone of an entire nation.  America as a country has gone through a gamut of emotions, particularly in the last decade.  From 9/11 to President Obama’s election, the  public has experienced fear, hope and all the emotions in between.  Click below to see a timeline of the nation’s collective consciousness in the last 40-plus years through the people, trends and events that changed it.

A morning by Chicago’s Millennium Park revealed a gamut of emotions from young and old alike.

Dan Hill is the founder and president of Sensory Logic, a company that helps individuals and companies measure and manage emotions through eye tracking and facial coding

Hill teaches Dr. Paul Ekman’s seven main emotions found cross culturally. Hill’s book, “Emotionomics: Leveraging Emotions for Business Success,” gives a crash course on facial coding.