根据短文内容，完成所给句子，每空一词。
     Much meaning can be carried clearly with our eyes, so it is often said that eyes can speak.
     Do you have such kind of eyes? In 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 uncomfortable. The same in daily life,  if you are looked at
for more than necessary, you will look at yourself up and down, to see if there is something wrong with
you. If nothing goes wrong, you will feel angry toward the person who is looking at you that way. Eyes
do speak, right?
     Looking too long at someone may seem to be impolite.  But sometimes things are different.  If a man
looks at a woman for more than lo seconds, it may mean that he wishes to attract her attention,  to make
her understand that he loves her.  When two people are in a conversation, the speaker will only look at
the listener from time to time, in order to make sure that the listener does pay attention to what he or she
is speaking. Lovers will enjoy looking at each other or being looked at for a long time,  to show
something that words can't express.
     Clearly, eyes contact should be done according to the relationship between two people and the place
where you stay.
1. From the passage, we can know our            can carry much meaning clearly.
2. If a         _ looks at you for too long time in a bus, you will feel uncomfortable.
3. If someone looks at you for more than necessary, you will first look at yourself to            if there is
    something wrong.
4.  It is            to look at someone too long.
5. We can use our eyes to _          some meaning but we must pay attention to the relationship between
    two people and the place where you stay.