I remember working for a large corporation and being 'told' (along with everyone else in the corporation) to smile. The 'Powers To Be' wanted our customers to think we were happy (and let's face it, who wants to be greeted by an unhappy customer service person). I guess what I'm getting at is that they wanted us to create a delusion, of sorts. I remember being in some offices of this corporation and being in the area out of customer sight and there were signs near the door where you walk out to the customer area saying "Smile, you are back on stage".
The idea of having everyone smile or being happy is a great idea. It would have sent a lot stronger customer service focus message, however, if the staff actually WERE happy the corporation would have seriously been a force to be reckoned with. If our actions were in harmony with our lives, we would have actually BEEN happy and would have smiled anyway.
What do you need to change to put your actions and your life into harmony? What do you need to be, do or have to actually BE happy? Instead of putting a smile on your face when you are back on stage?