What's the matter with you? What's wrong? Sorry, but nothing seems to be wrong here :p
Okay. Today, let's talk about smile. So.. What is the meaning of smile? Smile is something that will smack your sadness out from your mind. But what would happened if you've never ever smiled and laugh together like that? Don't worry if you're not being smiled back by others who you smiled at. The importance is just smile to whoever you met :)
cheers :)