The body does not lie, so here are a few tips that will help you when dealing with others.

Nonverbal	Interpretation
Brisk, erect walk	Confidence
Foot slightly kicking	Boredom
Arms crossed on chest	Defensiveness
Hands in pocket and shoulders hunched	Dejection
Hand to cheek	Evaluation, thinking
Touching, slightly rubbing nose	Doubt, lying
Rubbing eyes	Doubt, disbelief
Hands clasped behind back	Frustration
Open palm	Innocence
Rubbing hands	Anticipation
Head resting on hand, eyes downcast	Boredom
Pinching bridge of nose, eyes closed	Negative evaluation
Tapping or drumming fingers	Impatience
Steepling fingers	Authoritative
Patting/fondling hair	Lack of self-confidence
Pulling or tugging at ear	Indecision
Tugging at pants while sitting	Nervousness