Check their Arms 胳膊

摘自：http://www.wikihow.com/Read-Body-Language

• People with crossed arms 
• are closing themselves to social influence. 
• Though some people just cross their arms as a habit, it may indicate that the person is (slightly) reserved, uncomfortable with their appearance (IE: self conscious and trying to cover it), or just trying to hide something on their shirt. 
• If their arms are crossed while their feet are shoulder width or wider apart, this is a position of toughness(韌性 Rènxìng) or authority (权威).
• If they are rubbing their hands together or somehow touching them selves it means 
• they are trying to comfort themselves and are most likely thinking "it will be over soon"
• If someone rests their arms behind their neck or head, 
• they are open to what is being discussed or just laid back in general.
• If their hands are on their hips (臀部), 
• they might be waiting, impatient or just tired.
• If their hands are closed or clenched(握緊), 
• they may be irritated(惱怒的), angry, or nervous.