How to identify fake friends

Fake friends are like the shadow. They will stick around during your brightest moment, but disappear during your darkest hours. Actually they need you, for accomplishment of their own agenda, and doesn't matter how much do you give. They won't be thankful at all although for you they are your friends, and you share your dreams or ideas with them, and from outside they will pretend that they are happy for you, but from inside they are burning by the flames of envy, and feeling insecure because of you. Eventhough you call them friends, but they really don't care about it, and constantly they would make conspiracies to stab your back, and make you fragile. Always remember true friends are those who will know you apart from your smile. They know what excites you to go through your goal, and how to navigate you when you loose hope, and when you become successful they are over the moon, and when you fall down they feel under the weather, but they will try their best to make you feel that nothing happened at all, so if you don't see these qualities in those whom you call your friends, or it's better to say pretenders then everything will be crystal clear, and remember fake friends are similar to cavity in your mouth, so remove them before they cause any permanent damage.