A smile really does hide alot. Of course everyone has problems but at school people just smile through them. I never even realized what goes on some people's lives until i found them on witty. The people who are 'happy' and 'easygoing' are actually depressed and suicidal. It's really surprising and sad. So be really careful about what you say to people. No matter how happy they seem they could be one mean word away from breaking.