Leave quarters around a store for little kids to find!
Leave encouraging, uplifting post-it notes on mirrors in public restrooms.
You can help your grandparents plants some vegetables in their garden
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After the garbage man comes, pull the pails in from the street for all your neighbors.
Write a note of kindness and tie it to a flower. Hand out flowers to people as they walk into a store or other business.
Take a copy of your favorite book to the park. Find someone reading and tell them how much the book meant to you and that you want them to have it. Have a givinggame card as a bookmark.
Make your favorite snack or treat, hand it out to random people and include the recipe
Pay for the person behind you in a drive-thru, coffee shop, etc.
Pay for the person behind you in line! At the convenience store, the coffee shop, the drive thru!
Clean someone's car, especially when the winter has really taken a toll.
Tape enough money to a vending machine to pay for the next person's drink.