Smile is a very easy thing done by everyone, a smile indicates that you have a friendly nature towards others. With a smile when looking at others, then the opponent that we see it will also smile. It is a tangible thing that the seyum can be passed on to others.
The sign of someone friendly lies in his smile, the smile he has, the higher the level of hospitality he has. We can give a smile to anyone who is in front of us, be it family, neighbors, friends, parents, anyone can receive the smile we give.
Smile is the most positive thing to change the previously uncomfortable atmosphere to be comfortable. People who regularly smile cenderum avoid headaches, and able to have a life in the spirit every day.
So, because smiling is useful, let's give the best smile from today to the people around us :)).