When you find a happiness quote you love, add it to your email signature so that it will be read by everyone you correspond with throughout your day. Also, when you happen upon a funny meme, hilarious story, joke, or quote, text them to someone you know who needs a boost. If the recipient is having a bad day, your dose of optimism, humor, and happiness may be just what that person needs to start gig- gling and get back into a joyful groove.