How often you do smile during a day? What make smile? Who you should smile to?
We can smile whenever we want to use and it is free of charge, is isn't?

During the day of your study or work, you might not smile even one time to the people around, if you feel bad and stress, but this would never able to help your boring feeling or stress decrease but going to be exploited.

Importantly you may need to smile more often during your day, even sometimes you are very busy and unhappy. When you smile to someone, you may get beautiful smiling back or big smile and those may make happy feel relief and relax from boring feeling. In addition, smile can also improve your interesting from other.

Perfectly, keep smiling more often during the day with the people around you,
to increase your life-style, friendship, look more beautiful and make you more happy.