Facial Expressions

Our faces are the most expressive part of our bodies. Think of how photos are often intended to capture a particular expression “in a flash” to preserve for later viewing. Even though a photo is a snapshot in time, we can still interpret much meaning from a human face caught in a moment of expression, and basic facial expressions are recognizable by humans all over the world. Much research has supported the universality of a core group of facial expressions: happiness, sadness, fear, anger, and disgust. The first four are especially identifiable across cultures. Peter A. Andersen, Nonverbal Communication: Forms and Functions (Mountain View, CA: Mayfield, 1999), 35. However, the triggers for these expressions and the cultural and social norms that influence their displays are still culturally diverse. If you’ve spent much time with babies you know that they’re capable of expressing all these emotions. Getting to see the pure and innate expressions of joy and surprise on a baby’s face is what makes playing peek-a-boo so entertaining for adults. As we get older, we learn and begin to follow display rules for facial expressions and other signals of emotion and also learn to better control our emotional expression based on the norms of our culture.

Smiles are powerful communicative signals and, as you’ll recall, are a key immediacy behavior. Although facial expressions are typically viewed as innate and several are universally recognizable, they are not always connected to an emotional or internal biological stimulus; they can actually serve a more social purpose. For example, most of the smiles we produce are primarily made for others and are not just an involuntary reflection of an internal emotional state. Peter A. Andersen, Nonverbal Communication: Forms and Functions (Mountain View, CA: Mayfield, 1999), 35. These social smiles, however, are slightly but perceptibly different from more genuine smiles. People generally perceive smiles as more genuine when the other person smiles “with their eyes.” This particular type of smile is difficult if not impossible to fake because the muscles around the eye that are activated when we spontaneously or genuinely smile are not under our voluntary control. It is the involuntary and spontaneous contraction of these muscles that moves the skin around our cheeks, eyes, and nose to create a smile that’s distinct from a fake or polite smile. Dylan Evans, Emotion: The Science of Sentiment (New York: Oxford University Press, 2001), 107. People are able to distinguish the difference between these smiles, which is why photographers often engage in cheesy joking with adults or use props with children to induce a genuine smile before they snap a picture.

We will learn more about competent encoding and decoding of facial expressions in Section 4.3 "Nonverbal Communication Competence" and Section, but since you are likely giving speeches in this class, let’s learn about the role of the face in public speaking. Facial expressions help set the emotional tone for a speech. In order to set a positive tone before you start speaking, briefly look at the audience and smile to communicate friendliness, openness, and confidence. Beyond your opening and welcoming facial expressions, facial expressions communicate a range of emotions and can be used to infer personality traits and make judgments about a speaker’s credibility and competence. Facial expressions can communicate that a speaker is tired, excited, angry, confused, frustrated, sad, confident, smug, shy, or bored. Even if you aren’t bored, for example, a slack face with little animation may lead an audience to think that you are bored with your own speech, which isn’t likely to motivate them to be interested. So make sure your facial expressions are communicating an emotion, mood, or personality trait that you think your audience will view favorably, and that will help you achieve your speech goals. Also make sure your facial expressions match the content of your speech. When delivering something light-hearted or humorous, a smile, bright eyes, and slightly raised eyebrows will nonverbally enhance your verbal message. When delivering something serious or somber, a furrowed brow, a tighter mouth, and even a slight head nod can enhance that message. If your facial expressions and speech content are not consistent, your audience could become confused by the mixed messages, which could lead them to question your honesty and credibility.