What more to say? It is really so simple. If everyone is just doing this, then the world will become a better place. Try to be the better YOU. Do the changes you want to see in your life, in your family, the neighborhood or at work yourself.
Our MahaAtma nailed it really to the point. Show others that a change is possible. Treat people as you would like to be treated. Yes, just BE the change in your own reality! You are the master of your universe. Don't forget that.