smile play an important role in my life...i like to smile...so i hope that all people beside me like to smile and always smile to each other...really nice...some more smile can make people feel more comfortable when they are in tension condition...hehe...so smile can make people feel like they are more easy to suit into the condition...really good...so pls smile to all people beside u...and dun forget...if can...give them a big hug to show ur love to them...hehe...hope that the world will be better if everybody can practice smile and hug...