AARP Hearing Center

It’s said that a picture is worth a thousand words. When the canvas is the human body, a picture might be worth much more than that — especially for older adults, for whom nonverbal communication can make a meaningful difference in social and even medical interactions.
A 2023 U.S. and Israeli review of several studies, published in Current Opinion in Psychology, confirmed the power of nonverbal communication. Research shows that nonverbal cues can have a more immediate impact than verbal communication — for example, an apology is more effective if it’s accompanied by eye contact and open body language that indicates remorse.
Whether your goal is being better understood by family members, friends and caregivers; advocating more effectively for yourself in work or health care settings; or improving how you present yourself to form closer friendships, nonverbal communication — which includes the faces you make, what you do with your hands and how you orient your body, your breathing, your posture and even the pitch of your voice — can make a difference. We’ve gathered everything you need to know to master it.
The Basics of Nonverbal Communication

1. Make eye contact
“Eye contact is one of the most powerful nonverbal cues we have,” says behavioral investigator Vanessa Van Edwards, a Harvard University instructor and founder of Science of People, a research lab for human behavior. “It instantly communicates interest, trust and engagement. In fact, research has shown that people who make good eye contact are often perceived as more competent and likable.”
2. Focus on your facial expressions
The many small muscles in the human face can make dozens of different expressions across at least 21 distinct categories. They convey everything from happiness, surprise and sadness to fear, anger and disgust. “Our face is the billboard of our emotions,” Van Edwards says. “It communicates far more than our words ever could. A smile, for example, is a universal sign of warmth and friendliness.” Frowns and furrowed brows are universal signs of concern, worry and confusion; wide eyes are universal signs of surprise; and squinting is a universal sign of doubt or distrust.
Without these and other facial cues, interpersonal communication can come to a standstill, according to Valerie Manusov, a professor of communication at the University of Washington and coeditor of The Sage Handbook of Nonverbal Communication. She cites people with amimia, a medical condition common among older adults in which facial mobility is lost. “Their brains may be working totally well, but people start to ignore them — even people who are close to them — because they think that they’re absent or disengaged,” Manusov says. “If we’re not using facial animation, people don’t enjoy interacting with us as much.”
3. Micro expressions are not a small thing
The most difficult facial expressions to discern are “micro expressions” — brief, fleeting, typically involuntary looks that last only a fraction of a second. According to retired behavior analyst Joe Navarro, a former FBI special agent and author of What Every Body Is Saying: An Ex-FBI Agent’s Guide to Speed-Reading People, examples of micro expressions include a wrinkled nose, which communicates dislike or disgust; compressed lips, which suggest anxiety or nerves; and a twitching eye, which indicates stress. On the positive side, there’s raised eyebrows, also called the “eyebrow flash.” “Arching the eyebrows is a gravity-defying behavior which communicates that you’re welcoming,” Navarro says. “Even babies as young as 2 weeks old recognize the eyebrow flash as something positive.”
4. Posture and space matter, too
The body can be just as expressive as the face, according to Van Edwards, who says posture — the body’s position, pose and orientation — reveals a lot about your feelings. “Before you even speak, the way you hold yourself is signaling confidence, openness or stress,” she says. Manusov agrees. “We make a lot of interpretations about what someone is like from their bodies,” she says. For example, if someone is hunched over, we tend to think that they’re unhappy. If we see someone standing up straight with their shoulders back, we tend to think that they’re powerful or confident.
It’s not just how you hold your body that sends a message. It’s also where you put it in relation to others. The distance you put between yourself and someone else, for example, can communicate intimacy, trust and respect — or the lack thereof. “Proxemics — how we use space — sends strong signals about our intentions and comfort,” Van Edwards says. “Standing too close can feel invasive, while standing too far can feel cold. The sweet spot varies culturally, but awareness is key.” People in Latin America, for example, tend to require less personal space, while people in the United States generally need more.

5. Get a grip on body and hand gestures
Like personal space and proxemics, hand gestures vary across cultures. In the United States, for example, the thumbs-up and OK sign are generally positive gestures. In countries such as France, Germany, Russia and Greece, however, they can be the equivalent of the middle finger. But there are many universal hand and body gestures, Navarro says. In 1974, he conducted a study of children born blind and discovered that they made many of the same hand gestures as sighted people — for example, putting the fingertips of both hands together in front of their chest or face, otherwise known as “steepling” or “finger tenting.” “When we’re confident, we tend to steeple,” Navarro says. “Blind children have never seen this behavior before, and yet they’ll perform it when they’re confident about something.”
6. Get a feel for touch
Provided it’s appropriate and consensual — for example, hand-holding, a hug, or a light touch on the shoulder or back — human touch can be a compelling form of communication, according to Navarro. He cites funerals at which no one is speaking, yet everyone is embracing or putting their arms around one another. “Physical touch is the most powerful way to communicate that we care,” he says, adding that touch has been shown to stimulate the release of oxytocin, often referred to as the “bonding hormone.” “Oxytocin … is a very powerful chemical neuropeptide,” Navarro says. “It’s a hormone that makes us feel good.” Research shows that consensual physical touch improves both physical and mental well-being by reducing pain, anxiety, depression and stress.
7. Remember your tone of voice
Although spoken words are verbal, the quality of your voice when you speak them is an aspect of nonverbal communication, according to Judith Hall, a professor emerita of psychology at Northeastern University, where she dedicated her career to nonverbal communication. “If you’re a public speaker and you’re nervous, for example, your voice might reveal it,” says Hall, referring to the shaking, quivering voice that can affect people speaking to an audience.
8. Don’t forget your breathing
Even breathing can be a form of nonverbal communication, according to Stephen Furlich, associate professor of communication studies at East Texas A&M University and author of Nonverbal Epiphany: Steps to Improve Your Nonverbal Communication. “Breathing can be one piece of the puzzle and could tell someone else how relaxed or how anxious another person is,” he says. “If they’re breathing more, they might be more anxious. If they’re breathing less, they might be more relaxed.”
9. A word about sign language
Many people think that American Sign Language (ASL) is a form of nonverbal communication, but that’s actually not the case. According to the National Institute on Deafness and Other Communication Disorders, ASL “is a complete, natural language that has the same linguistic properties as spoken languages. ... It contains all the fundamental features of language, with its own rules for pronunciation, word formation and word order.”
That said, ASL does rely heavily on nonverbal communication to emphasize and amplify the hand gestures that constitute the language. This is done through raised eyebrows, widened eyes and other movements. Because of that, older adults who rely on ASL to overcome verbal communication problems caused by challenges like hearing loss can benefit from learning the principles of nonverbal communication.
It’s important to note, however, that ASL is processed in the left side of the brain, which is where we decode spoken and written language, while the brain’s right side typically processes nonverbal communication like facial expressions. So if an older adult who is a sign language user suffers a stroke and aphasia, then their ability to use sign language is gone, says speech language pathologist Suma Devanga, assistant professor of communication disorders and sciences at Rush University Medical Center. She notes that aphasia — a language disorder caused by brain damage — typically results from injury to the brain’s left hemisphere. “They’re not able to use those signs anymore, because sign language is a language just like a spoken language,” Devanga says. “You are trying to provide therapy for sign language that is lost, and trying to help them recover signing, just like how we are helping them recover spoken language.”
How to Use Nonverbal Communication Effectively
10. Make eye contact (but not too much)
When you encounter someone on a busy street or in a crowded room, eye contact is “an invitation that you want to communicate or interact,” according to Furlich, who says maintaining eye contact requires a constant balancing act. “Eye contact for too long usually comes across as aggression, and too little eye contact often comes across as being disinterested,” he notes. For that reason, “aim for about 60 to 70 percent eye contact during conversation to strike a balance between interest and comfort,” Van Edwards suggests. To achieve just the right amount of eye contact, Furlich recommends the “triangle method.” “A person’s two eyes and mouth form a sort of triangle,” he says. “What you want to do is break down your eye contact and focus for just a few seconds at a time on each part of the triangle. This helps you maintain eye contact with the other person without overwhelming them.”
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