According to experts, a substantial portion of our communication is nonverbal. Every day, we respond to thousands on nonverbal cues and behaviours including postures, facial expression, eye gaze, gestures, and tone of voice. From our handshakes to our hairstyles, nonverbal details reveal who we are and impact how we relate to other people.
Scientific research on nonverbal communication and behaviour began with the 1872 publication of Charles Darwin’s The Expression of the Emotions in Man and Animals. Since that time, there has been an abundance of research on the types, effects and expressions of unspoken communication and behaviour. While these signals are often so subtle that we are not consciously aware of them, research has identified several different types of nonverbal communication.
In many cases, we communicate information in nonverbal ways using groups of behaviours. For example, we might combine a frown with crossed arms and unblinking eye gaze to indicate disapproval.
Some examples of non-verbal communication are:
Facial Expressions – Facial expressions are responsible for a huge proportion of nonverbal communication. Consider how much information can be conveyed with a smile or a frown. While nonverbal communication and behavior can vary dramatically between cultures, the facial expressions for happiness, sadness, anger and fear are similar throughout the world.
Gestures- Deliberate movements and signals are an important way to communicate meaning without words. Common gestures include waving, pointing, and using fingers to indicate numeric amounts. Other gestures are arbitrary and related to culture.
Paralinguistics – Paralinguistics refers to vocal communication that is separate from actual language. This includes factors such as tone of voice, loudness, inflection and pitch. Consider the powerful effect that tone of voice can have on the meaning of a sentence. When said in a strong tone of voice, listeners might interpret approval and enthusiasm. The same words said in a hesitant tone of voice might convey disapproval and a lack of interest.
Body Language and Posture – Posture and movement can also convey a great deal on information. Research on body language has grown significantly since the 1970’s, but popular media have focused on the over-interpretation of defensive postures, arm-crossing, and leg-crossing, especially after the publication of Julius Fast’s book Body Language. While these nonverbal behaviors can indicate feelings and attitudes, research suggests that body language is far more subtle and less definitive that previously believed.
Proxemics – People often refer to their need for “personal space,” which is also an important type of nonverbal communication. The amount of distance we need and the amount of space we perceive as belonging to us is influenced by a number of factors including social norms, situational factors, personality characteristics and level of familiarity. For example, the amount of personal space needed when having a casual conversation with another person usually varies between 18 inches to four feet. On the other hand, the personal distance needed when speaking to a crowd of people is around 10 to 12 feet.
Eye Gaze – Looking, staring and blinking can also be important nonverbal behaviours. When people encounter people or things that they like, the rate of blinking increases and pupils dilate. Looking at another person can indicate a range of emotions, including hostility, interest and attraction.
Haptics – Communicating through touch is another important nonverbal behaviour. There has been a substantial amount of research on the importance of touch in infancy and early childhood. Harry Harlow’s classic monkey study demonstrated how the deprivation of touch and contact impedes development. Baby monkeys raised by wire mothers experienced permanent deficits in behaviour and social interaction. Touch can be used to communicate affection, familiarity, sympathy and other emotions.
Appearance – Our choice of colour, clothing, hairstyles and other factors affecting appearance are also considered a means of nonverbal communication. Research on colour psychology has demonstrated that different colours can evoke different moods. Appearance can also alter physiological reactions, judgments and interpretations. Just think of all the subtle judgements you quickly make about someone based on his or her appearance. These first impressions are important, which is why experts suggest that job seekers dress appropriately for interviews with potential employers.
Non-verbal communication with gestures:
When considering non-verbal communication with gestures It is impossible to catalog them all, but need to recognise:
Incredible possibility and variety
That an acceptable in one’s own culture may be offensive in another.
In addition, amount of gesturing varies from culture to culture. Some cultures are animated; other restrained. Restrained cultures often feel animated cultures lack manners and overall restraint. Animated cultures often feel restrained cultures lack emotion or interest.
Even simple things like using hands to point and count differ. Pointing : US with index finger; Germany with little finger; Japanese with entire hand (in fact most Asian cultures consider pointing with index finger to be rude). Also counting: Thumb = 1 in Germany, 5 in Japan, middle finger for 1 in Indonesia.
Gestures may be made with the hands, arms or body, and also include movements of the head, face and eyes, such as winking, nodding, or rolling one’s eyes. Although the study of gesture is still in its infancy, some broad categories of gestures have been identified by researchers. The most familiar are the so-called emblems or quotable gestures. These are conventional, culture-specific gestures that can be used as replacement for words, such as the hand wave used in western cultures for “hello” and “goodbye”.
There are some universal gestures like the shoulder shrug.
Gestures can also be categorised as either speech independent or speech related. Speech-independent gestures are dependent upon culturally accepted interpretation and have a direct verbal translation. A wave or a peace sign are examples of speech-independent gestures. Speech-related gestures are used in parallel with verbal speech; this form of nonverbal communication is used to emphasise the message that is being communicated. Speech-related gestures are intended to provide supplemental information to a verbal message such as pointing to an object of discussion.
Facial expressions, more than anything, serve as a practical means of communication. With all the various muscles that precisely control mouth, lips, eyes, nose, forehead,and jaw, human faces are estimated to be capable of more than ten thousand different expressions. This versatility makes non-verbals of the face extremely efficient and honest, unless deliberately manipulated. In addition, many of these emotions, including happiness, sadness, anger, fear, surprise, disgust, shame, anguish and interest are universally recognised.
Displays of emotions can generally be categorised into two groups: negative and positive. Negative emotions usually manifest as increased tension in various muscle groups: tightening of jaw muscles, furrowing of forehead, squinting eyes, or lip occlusion (when the lips seemingly disappear). In contrast, positive emotions are revealed by the loosening of the furrowed lines on the forehead, relaxation of the muscles around the mouth, and widening of the eye area. When individuals are truly relaxed and at ease, the head will also tilt to the side, exposing our most vulnerable area, the neck. This is a high-comfort display, often seen during courtship, that is nearly impossible to mimic when tense or suspicious.