Practice forgiveness. It’s hard! I know this from experience. But you can start with a small thing, something impersonal – maybe forgiving the person who threw some trash on the ground. Just pick it up yourself and throw it out without cursing out the jerk who did it. Instead, mentally send a message of forgiveness their way. Then graduate, if you can, to forgiving when there’s more personal investment – forgive someone who actually did something to you, or to someone you care about. Try to set them a better example to follow with your own behavior. That’s being an angel on earth.