1. Give someone a thoughtful gift (it does not have to be expensive)
2. Hold the door open for someone
3. Write someone a thank you note
4. Send someone an email just to say hello
5. Call a friend or family member for no reason other than to chat
6. Pay the toll for the driver behind you
7. Pay for someone’s groceries at the grocery store
8. Buy someone a cup of coffee
9. Let someone cut in in traffic
10. Help a driver in need fix a flat tire or in some other way
11. …

Source: 70 Simple Random Acts of Kindness You Can Do Every Day