If you are in a public place at any time during the day today, sing out loud. Think of a happy song that puts people in a good mood, and sing a few bars of it. Get it stuck in someone else’s head. Too tone-deaf to do that? Too Shy? Okay, do a little dance step. At some point, tap a few steps, do some soft-shoe, try a little cha-cha-cha. Someone will see you, and it will make their day. And it might be fun for you, too!