Laugh and smile

Studies have shown that the very act of smiling can improve your mood and make you feel happier In addition, laughing releases endorphins, those brain chemicals that enhance your mood.
Even though you may not feel like it, even using those small muscles that facilitate laughing and smiling can make you happier. So, try faking it. It may be forced at first, but laughing or smiling could trigger a funny or happy memory and cause a real laugh or smile to occur.
If you want to try smiling or laughing without the effort, try watching a funny movie, reading a humorous book, or spending time with a friend who you know is likely to make you smile.