Gestures and the Signals They Send•	Rubbing your face, palms, and neck may signify anxiety and stress.•	Arms crossed with clenched fists may signify hostility, anger, and impatience.•	Arms crossed with each hand gripping other arm may signify insecurity and self-doubt.•	Arms crossed with thumbs up may signify interest and engagement.•	Or my favorite—arms crossed may signify that you are simply cold!•	Fidgeting and squirming may signify that you are lying, afraid of being found out, insecure, or uncomfortable.•	Standing with your hands behind your back may signify power and superiority.
Susan C. Young, The Art of Body Language: 8 Ways to Optimize Non-Verbal Communication for Positive Impact
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