4.1 Principles Nonverbal Communication

To further define nonverbal communication, we need to distinguish between vocal and verbal aspects of communication. Verbal and nonverbal communication include both vocal and nonvocal elements, and Table 4.1 “Vocal and Nonvocal Elements of Communication” shows the relationship among vocal, nonvocal, verbal, and nonverbal aspects of communication. A vocal element of verbal communication is spoken words—for example, “Come back here.” A vocal element of nonverbal communication is paralanguage, which is the vocalized but not verbal part of a spoken message, such as speaking rate, volume, and pitch. Nonvocal elements of verbal communication include the use of unspoken symbols to convey meaning. Writing and American Sign Language (ASL) are nonvocal examples of verbal communication and are not considered nonverbal communication. Nonvocal elements of nonverbal communication include body language such as gestures, facial expressions, and eye contact. Gestures are nonvocal and nonverbal since most of them do not refer to a specific word like a written or signed symbol does.

Nonverbal communication has a distinct history and serves separate evolutionary functions from verbal communication. For example, nonverbal communication is primarily biologically based while verbal communication is primarily culturally based. This is evidenced by the fact that some nonverbal communication has the same meaning across cultures while no verbal communication systems share that same universal recognizability.^[2] Nonverbal communication also evolved earlier than verbal communication and served an early and important survival function that helped humans later develop verbal communication. While some of our nonverbal communication abilities, like our sense of smell, lost strength as our verbal capacities increased, other abilities like vocalics and movement have grown alongside verbal complexity. The fact that nonverbal communication is processed by an older part of our brain makes it more instinctual and involuntary than verbal communication.

Nonverbal Communication Conveys Important Interpersonal and Emotional Messages

You’ve probably heard that more meaning is generated from nonverbal communication than from verbal. Some studies have claimed that 90 percent of our meaning is derived from nonverbal signals, but more recent and reliable findings claim that it is closer to 65 percent.^[3] We may rely more on nonverbal signals in situations where verbal and nonverbal messages conflict and in situations where emotional or relational communication is taking place.^[4] For example, when someone asks a question and we’re not sure about the “angle” they are taking, we may hone in on nonverbal cues to fill in the meaning. For example, the question “What are you doing tonight?” could mean any number of things, but we could rely on posture, tone of voice, and eye contact to see if the person is just curious, suspicious, or hinting that they would like company for the evening. We also put more weight on nonverbal communication when determining a person’s credibility. For example, if a classmate delivers a speech in class and her verbal content seems well-researched and unbiased, but her nonverbal communication is poor (her voice is monotone, she avoids eye contact, she fidgets), she will likely not be viewed as credible. Conversely, in some situations, verbal communication might carry more meaning than nonverbal. In interactions where information exchange is the focus, at a briefing at work, for example, verbal communication likely accounts for much more of the meaning generated. Despite this exception, a key principle of nonverbal communication is that it often takes on more meaning in interpersonal and/or emotional exchanges.

Nonverbal Communication Can Be More Involuntary than Verbal

There are some instances in which we verbally communicate involuntarily. These types of exclamations are often verbal responses to a surprising stimulus. For example, we say “owww!” when we stub our toe or scream “stop!” when we see someone heading toward danger. Involuntary nonverbal signals are much more common, and although most nonverbal communication isn’t completely involuntary, it is more below our consciousness than verbal communication and therefore more difficult to control.

The involuntary nature of much nonverbal communication makes it more difficult to control or “fake.” For example, although you can consciously smile a little and shake hands with someone when you first see them, it’s difficult to fake that you’re “happy” to meet someone. Nonverbal communication leaks out in ways that expose our underlying thoughts or feelings. Spokespeople, lawyers, or other public representatives who are the “face” of a politician, celebrity, corporation, or organization must learn to control their facial expressions and other nonverbal communication so they can effectively convey the message of their employer or client without having their personal thoughts and feelings leak through. Poker players, therapists, police officers, doctors, teachers, and actors are also in professions that often require them to have more awareness of and control over their nonverbal communication.

Have you ever tried to conceal your surprise, suppress your anger, or act joyful even when you weren’t? Most people whose careers don’t involve conscious manipulation of nonverbal signals find it difficult to control or suppress them. While we can consciously decide to stop sending verbal messages, our nonverbal communication always has the potential of generating meaning for another person. The teenager who decides to shut out his dad and not communicate with him still sends a message with his “blank” stare (still a facial expression) and lack of movement (still a gesture). In this sense, nonverbal communication is “irrepressible.”^[5]

Nonverbal Communication Is More Ambiguous

In Chapter 3 “Verbal Communication”, we learn that the symbolic and abstract nature of language can lead to misunderstandings, but nonverbal communication is even more ambiguous. As with verbal communication, most of our nonverbal signals can be linked to multiple meanings, but unlike words, many nonverbal signals do not have any one specific meaning. If you’ve ever had someone wink at you and didn’t know why, you’ve probably experienced this uncertainty. Did they wink to express their affection for you, their pleasure with something you just did, or because you share some inside knowledge or joke?

Just as we look at context clues in a sentence or paragraph to derive meaning from a particular word, we can look for context clues in various sources of information like the physical environment, other nonverbal signals, or verbal communication to make sense of a particular nonverbal cue. Unlike verbal communication, however, nonverbal communication doesn’t have explicit rules of grammar that bring structure, order, and agreed-on patterns of usage. Instead, we implicitly learn norms of nonverbal communication, which leads to greater variance. In general, we exhibit more idiosyncrasies in our usage of nonverbal communication than we do with verbal communication, which also increases the ambiguity of nonverbal communication.

Nonverbal Communication Can be Viewed as More Credible

Although we can rely on verbal communication to fill in the blanks sometimes left by nonverbal expressions, we often put more trust into what people do over what they say. This is especially true in times of stress or danger when our behaviors become more instinctual and we rely on older systems of thinking and acting that evolved before our ability to speak and write.^[6] This innateness creates intuitive feelings about the genuineness of nonverbal communication, and this genuineness relates back to our earlier discussion about the sometimes involuntary and often subconscious nature of nonverbal communication. An example of the innateness of nonverbal signals can be found in children who have been blind since birth but still exhibit the same facial expressions as other children. In short, the involuntary or subconscious nature of nonverbal communication makes it less easy to fake, which makes it seem more honest and credible. We will learn more about the role that nonverbal communication plays in deception later in this chapter.