Even when you do not feel happy, a smile can put you in a better mood. Keep smiling even when you are feeling negative at work. Smile to a customer approaching you, smile to a co-worker passing by and even smile to yourself. This attracts positive vibes and constructive energy from the other party and hence bringing a positive attitude in the building. Positive attitude helps you to get rid of the negative feelings you have at work. When you dig deeper on the science behind smiling, you will find that it does not only improve attitude, but also helps you to be more successful and live longer. This alone is a reason for you to smile!