Before you do everything, smile first.
When you need someone’s help, you should say, “Excuse me.” At the same time, if there is an unhappy look in your face, he will be unhappy, too. How can you get his help while he has no pleasure? So show your smile, then you will get his help. In fact, smile is a difficult job. It seems very difficult for you to smile when you are sad. Don’t be afraid. Make up your mind to have a try. Only smile once, and you will find that you are much better in heart.
Smile is also a kind of language which cannot be heard by anyone but people always know its meaning. When you meet your friends in the morning, smile means “Good morning”. When you fail, your friends’ smile means “Have another try!”. So when you smile, although you don’t say any word, you can understand each other.
Remember to smile, and a happy life you will get, I think!