If someone staring at the sky, then it is likely to fall into memories of the past or in contemplation miss distant relatives.
The more others close to you, the more you are interested. Others farther away, in fact, the less attention to the current situation or individual. Social occasions, if the people around you a little closer, he would have to move slightly away from you? This means that he does not want to interact with you more than the current level of privacy. If he does not go away, so close to you is acceptable. And if his reaction is closer to you, then he probably really likes you or he feels very comfortable around you.
Body language
Body language即身体语言,是指通过 头、眼、颈、手、肘、臂、身、胯、ቤተ መጻሕፍቲ ባይዱ等 人体部位的协调活动来传达人物的思想, 形象地借以表情达意的一种沟通方式。
Refers to the coordination of activities by the head, eyes, neck, hands, elbows, arms, body, hips, feet and other body parts to convey the character's thoughts, in order to express emotion vividly as a means of communication.