5 Ways to Boost Credibility

Do you give off an air of credibility?

The answer could be no.

If you think that’s unimportant, think again. Your resume may well get you in the door.

But to truly stand out, you’ve got to look credible when it matters most: in face-to-face interactions. Whether you’re meeting one-to-one or presenting to a group, your confidence and competence are immediately being assessed.


But what does credibility look like, really? And why do some smart, capable people project credibility, and others—who are just as smart and capable—don’t?

In studying this phenomenon with thousands of clients, both men and women, I’ve identified 25 specific visual and auditory cues—explicit behaviors for posture, gestures, vocal skills, and eye contact—that affect the perception of credibility. And unlike countless other cues, such as age or physical features, these 25 cues are within your active control. What’s more, small changes can make a big difference.

To get fast results, start with these five cues.

5 Ways to Increase Your Credibility

1. Keep your head level

In the dog world, renowned trainer Cesar Millan has exceptional “executive presence.” Dogs recognize his alpha status by the way he carries himself.

In the business world, one of the best ways to project such presence is to keep your head level when speaking—no raising or dropping your chin, which can appear aggressive or submissive. The power of this one skill—to literally be levelheaded—can be transformative.

Practice Tip: Lengthen your spine and level your head. Now, moving only your head, like a camera on a tripod, scan your environment while keeping your torso still. Stillness is an authoritative behavior, so try not to let your shoulders twist with the movement of your head.

Related: 7 Surprising Causes Of Back Pain

2. Keep your hands in the “gesture box”

In poker parlance, a “tell” is a subtle signal revealing the strength or weakness of a player’s hand. Similarly, in meetings or presentations, your gestures alone can be telling to others.

The most effective hand gestures happen inside the “gesture box”—no higher than your sternum, no lower than your hips, and no wider than your shoulders. The sweet spot is your navel, where gestures tend to look the most natural.

Practice Tip: A common tell of self-consciousness is when your mouth is engaged but your body language isn’t. To appear comfortable, get your hands involved immediately, reaching out to your listeners with interactive gestures. In short, if your mouth is moving … so are your gestures.

Related: 5 Reasons To Boost Self-Confidence

3. Speak with optimal volume

If you’re a Seinfeld fan, you surely remember the infamous “low talker.” Likewise, in business settings a common problem with volume is speaking too softly or dropping volume at the end of sentences.

The good news is that volume is the easiest vocal skill to adjust. First, however, you must know the difference between adequate volume and optimalvolume. Most people err on the side of merely adequate. If you want to be a powerful voice, speak with a powerful voice.

Practice Tip: Your diaphragm, the small muscle separating your chest and abdominal cavity, is your engine for volume. Strengthen this muscle with five minutes of isolated exercises a day. One such exercise: Say the days of the week in a single breath, drawing out the vowels to prevent your diaphragm from resting between words. Later, move on to the months of the year.

Related: 7 Ways To Perform Well Under Pressure

4. Hold eye contact for three to five seconds

“Eye contact is the best accessory,” says writer Takayuki Ikkaku. It is also a key indicator of confidence and credibility. Still, there is a difference between making eye contact and holding eye contact.

Duration is critical, and in the Western world, holding eye contact for three to five seconds is considered optimal.

Practice Tip: As you converse with coworkers, try speaking one phrase to one person. Then, when you reach a natural pause, speak the next phrase to someone else. Continue in this way, letting the structure of your sentences guide your rhythm.

You may look away momentarily, but keep your eyes on the horizon—no looking up or down—and each time you come back, hold eye contact for three to five seconds.

Related: The Big Benefits Of Small Talk–And How To Get Better At It

5. Listen actively

Your credibility can be won or lost when you’re simply listening. Do you look bored or disconnected—or respectfully engaged? Attentive listening means you’re an active partner.

It’s not enough to pay attention; you have to look like you’re paying attention. Keep your posture open, your head up, and your navel pointing toward the speaker.

Practice Tip: At your next meeting, imagine that a coworker is taking notes about your behavior. What cues are you displaying? Are you following the conversation with your eyes and nose aimed at the speaker? Is your body language open and energized? And are you reacting to others with nonverbal signals that say you’re listening?

Related: Listen Better In 5 Steps

The Takeaway

From body language to verbal cues, you can boost your credibility at the office, in the boardroom, or at home. Start with keeping your head level, keeping your hands in the “gesture box,” speaking at the right volume, holding eye contact, and listening actively. Soon, you’ll be noticing the big differences that credibility can make in your life.


Cara Hale Alter is president of SpeechSkills, a San Francisco based communication training company, and author of The Credibility Code: How to Project Confidence and Competence When It Matters Most (Meritus, 2012).

Image by reynermedia

Originally published in July 2012 and updated in June 2014.

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