Jealousy

Jealousy is the emotion of a human which even he try to hide but cannot it. Though many people try not to be jealous but by the success of his friend or enemy makes him jealous.
My experience with jealous is same as expressed above. Though i try to be not jealous, but somewhere in heart the jealousy occurs. If we take a certain example of exams when we get
Less marks but our friend get more marks . Though we don't  want to be  but we become jealous. But the same friend get less marks suddenly you get a relief.  I daily  see people of jealous
hearts in my school. People who are jealous of me had crossed certain limits. Some of my friends are so jealous that i can clearly see jealousy on their  faces . How to identify Jealousy?
It is very easy when  you are happy go to your friend and tell about your  happiness to him. After a while, look at his face if that friend is happy in your happiness then he is your true
friend but if you see unhappiness on his face then he is not true friend. If someone try  to make you over confident  by saying good of yours then surely he or she  is jealous. How to not
be jealous then? Best way is meditation. If not then just do as given in image . Bye friends i will back soon don't  be jealous