根据短文内容及所给首字母提示写出所缺单词.使短文意思完整，每空一词。
Much meaning can be carried clearly, with our eyes. So it is often s   that eyes can speak. Do you have such kind of e  ? On a bus you may look at a stranger, but not too long. And if he finds that he is being looked at, he may feel u  . The same is in daily life. If you are looked at for more than necessary, you will look at yourself up and down, to see i    there is anything wrong with you. If nothing goes wrong, you will feel a   toward the person who is looking at you that way.
Looking too long at someone seems to be impolite. But sometimes things are d  . When two people are in a c  , the speaker will only look at the listener from time to time, in order to make sure that the listener does pay a  to what he or she is saying. Lovers will enjoy looking at each other or being looked at for a long time, to show something that w cannot express.
Clearly, eye contact should be done according to the r  between two people and the place where you stay.