The head
Looking around the people connotes let me go.
Head supported on the shoulder indicates boredom.
Nodding connotes interest and agreement.
The eyes
Direct eye contacts occurring at 60% of the time indicates that the person has interests in what you have to say.
Eye contact at about 80% of the time tells you that the person is interested in sexually .
Rapid blinking or 100% eye contact indicates resist.
Frequent avoidance of the eyes means secrecy or lack of confidence.
The hand
The hand flat on the table indicates readiness to agree.
A limb handshake palm betrays submission; firm handshake palmdown comveys strength and confidence.
The hand on the chin indicates ongoing evaluation of what is just being said.
Hands in the pocket indicates secrecy.
Hands open and palmup indicates openness and truthfulness.
The hand clinched behind the back indicates to show a desire of power and control.
The legs.
A prospect's crossing legs while standing indicates isolation while sitting indicates that your idea may not be easily accepted.
The foot when tapping says let me speak or I am bored.