Often, when we're overwhelmed, stressed, anxious, or simply having a terrible day, it's easy to become impatient with the people around us. Maybe we snap at a coworker, get irritated with a friend, or respond harshly to a loved one without really meaning to. It happens—we're all human. But in a world where so many people are carrying struggles we know nothing about, choosing kindness can make a bigger difference than we realize. A small gesture,…