When somebody asked me "How to stay happy" I took risk to reply such question which is generally asked to some Saint or spiritual leader, I explained it as under:
Whole human life is chasing something , getting something, having something or maintaining something. The person was not satisfied and he insisted to explain it further and I had to elaborate my reply and the question and concept implied in it both were manifest.
1. To make or get money and wealth,
2. To have name, fame and be influential.
3. To love and get loved
4. To keep up all the above three in favor on sustained basis.
We can notice well that almost everybody is busy with the above four kind of activities. Level of busyness might be the different person to person depending upon his or her priorities. Now coming on the question "How to be Happy", the point here is that if we are in these four activities only than our happiness would be limited to our needs. In other words, if my need of wealth is acute than it would give happiness to the extent the money and wealth I can consume, the moment the need gets satisfied, happiness will start finding new definition in another activities and it will shift its focus to other activities and this shifting becomes a habit. In this process the real happiness is never finding its value and due importance too. So what to do ? simple answer is that if we can spare part of our time for any such activity which does not fall in these four activities than happiness starts coming in.
To make it simple, such as if someone draws a picture , sing a song, plays piano, walks in a garden, looks at beautiful stars in night, observes sunrise, listen music, meditates, prays, forgives, studies positive thoughts, involves in good sports, supporting others and so on. All these should not have any motive which if eventually leads to the four activities than happiness would be artificial and not the real. In simple words if we start involving in any such activities which is not categorized as part of the four mentioned above than most probably there would be happiness and balance in life too. Those who practices it well, would know it better.