" 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 (The Art of First Impressions for Positive Impact, #3)