Why talk?

Now a days in our world, envy is what drives people to gossip about each other. I admit it sometimes i envy some one for what they have and I'll end up gossiping about them, but why? Envy! That thing makes you do things you wish you didn't do. At the end of the day i tell my self why did i do that? Yes i may envy them but envy is not going to give me what i want, it will probably just make things worse. I honestly don't know what part of out brains drives to gossip, i mean if you like what ever they have so much, why not just get it yourself, instead of gossiping about it?