I found this list at YES! Magazine.
Put a coin in someone’s expired parking meter.
Send a handwritten postcard to someone each month.
Help others survive and thrive.
Start each day with a prayer of gratitude.
Smile at the bus driver every morning and every evening.
Volunteer for a cause or a nonprofit organization in which you believe.
Dance at least once a day, to music or not—with someone if you can—alone if you must.
If in a wheelchair or bed-ridden, wriggle what part of your body you can.
It keeps the blood flowing and lightens up the heart.
Send a handwritten letter, short note, or postcard to someone each month.
Shop at the Farmer’s market instead of the market.
Have an out-of-body experience at least once.
Smile more—even at strangers.
Listen deeply to someone with a viewpoint different from your own on an important issue.
Share books.
Eat at least one meal a month that is totally comprised of locally produced/grown foods.
Learn to identify local edible wild plants.
Grow some surplus in your garden for your local foodbank or a feeding program.
Ride a bike to do your errands.
Be nice to dogs and cats.
Make faces at yourself in the mirror every morning.
Dress up and play “world leaders” with your children.
Listen to their solutions to the poverty and war questions.
Become financially independent and intelligent.
Learn to appreciate every bit of energy you consume.
Live car-free.
Join a group that has a mission to facilitate positive social change.