You can always make the world a little bit better or a little bit worse.
Smile at a stranger. Be nice to a telemarketer. Look a homeless guy in the eye when you answer, "I'm sorry. But, good luck." Tell someone when they're doing a good job. Wave at school buses. Compliment the chef. Tell the truth. Trust your child. Refuse to compromise your integrity. Pick up after yourself. Demonstrate courage. Lead by example. Follow your heart.