The Power of Nonverbal Communication | Joe Navarro | TEDxManchester

Vocal fillers such as "um" or "ah" can indicate hesitation or uncertainty. They can also indicate that a person is trying to buy time to think about what to say next or not sure about the answer.

A decrease in blinking rate can indicate, interest or deception. A normal blink rate is about 10 to 15 times per minute. Rapid blinking can indicate nervousness or lying. Excessive blinking can indicate discomfort or dishonesty. Long blinks can indicate boredom or lack of interest.

Standing tall with good posture can indicate confidence and power, while slouching can indicate lack of confidence or submission. Also, putting hands on hips can indicate assertiveness or dominance.

Head tilted to the side: When someone tilts their head to the side, it can indicate curiosity, interest, or confusion.

Head resting on hand: Never rest your head on the hand as it can indicate boredom, fatigue or inattentiveness.