1. Tell your self you are not going to let your sadness control you
2. Take a deep breath
3. Think of something that makes you very happy (People you love, your job, your favorite vacation, puppies.. whatever!)
4. Then just embrace that thought. Hopefully a fun memory will pop into your head and you'll be smilin' in no time!
This has been proven to increase your marital satisfaction, love life, daily happiness, and perseverance in life.
(Ok, maybe I don't know that but this is interesting)
Now you go out there and get your smile on!