Sometimes it is the simplest act from a complete stranger that can have the greatest, lasting impact on a person. When someone realizes that a stranger noticed them and cared enough to do something special for them, it can brighten their day and maybe help them to understand their self-worth.
Step It Up
Offer to pay the tab for the person in line behind you at the grocery store or gas station. You could also pay for the drink of someone behind you at a coffee shop. If you notice someone who looks like they’re having a bad day, all the more reason to cheer them up with a random act of kindness!
Keep It Simple
When you notice that someone in line in front of you at a store is short on money when it comes time for them to pay, offer to chip in a few bucks or whatever it takes to help them afford their purchase.
(taken from: randomactsofkindness.org)