People are like Mirrors !!

Mirrors have unique properties 

Mirrors don't lie, mirrors tell you what you are , mirrors don't plan any scheme against you . mirrors have no affection or enmity with you

Mirrors tell you what is the truth , they show you your reflection , they tell you what you look to others 

Similarly people around you mirror your personality, habits etc, they sometimes reflect you, when you deal with a person , they tend to copy you sub-consciously..

For e.g. when you are in a happy mood and start laughing , people around you also can get affected and start to laugh or be happy or in other words they mirror

When you do serious or religious talks people listening to you also become serious or tend to be more thoughtful of your sentiments 

Even you also mirror people , remember when you go to church or a nightclub , your attitude changes automatically as the environment affects you or you mirror the environment..

practical example can be that when you are not wearing good clothes , people might avoid you or are not attracted towards you , in a way , they are acting like a mirror and telling you that what's wrong with your personality.