Show your gratitude

Happy people are grateful and appreciative of what they have, whatever that may be. They always find something good and positive in their circumstances. This attitude of gratitude is the foundation stone on which happiness is built. By way of contrast unhappy people are not grateful or appreciative of anything in their world. They are constantly focused on the fact that there is something that they don't have. They live in lack and as a result their spirit is lacking. Nothing ever makes them truly happy. [Source]