It is a stranger, but not too 31 . If he notices that he is being looked at, he may 32 uncomfortable. It is the same in daily life. When you are looked at for several more times, you will look 3 3 up and down in order to 34 if there is anything wrong with you. If 35 goeswrong, you will feel angry with the person who is looking at you. 36 can speak, right? Looking too long at someone may seem to be impolit often said that eyes can speak. Do you have such kind of 37 ? In a bus you may look at e. But sometimes things are 38 . If you wish to draw someone's 39 , you may look at him or her for more than ten seconds. For lovers, they enjoy looking at each other longer to show the love that words cannot 40 . Clearly, eye communication should be done according to the relationship between the two people and the certain situation.