Donate canned food for the needy.
Give a compliment.
Greet 5 people.
Play with a new friend.
Make lunch for someone tomorrow.
Help set the dinner table.
If they accomplish this kind deed, then the students can write their initial on a dot sticker and put it on our chart (math graphing, too!). We talk about how when we give kindness towards others, we in turn feel good about it; and how often being kind costs us nothing extra.