It is often said that eyes can speak. Have you had this kind of 1 ? In a bus you may look at a stranger (陌生人), but not too 2 . If he notices that he is being looked at, he may 3 uncomfortable. It is the same in daily life. When you are looked at several more times, you will look 4 up and down in order to 5 if there is anything wrong with you. If 6 is wrong, you will feel angry with the person who is looking at you. 7 can speak, right?