I may lose some heavenly rewards for telling you about this, but hopefully it will result in you getting a few of your own.
Recently I was in Safeway, checking out. The bedraggled-looking guy in line behind me was holding only a bag of chips. I remembered reading a Mark Cahill* newsletter four months ago about using random acts of generosity to honor Jesus. As the cashier finished scanning my items, I told her, "I'll buy his chips." She was stunned. So was the man. I told him, "Jesus said, "It's more blessed to give than to receive. I've found that to be true." (I wish I had said, "He's been so generous to me by dying to take the punishment for my sins." Hopefully next time.) He looked me square in the face and said, "Thank you for living out the gospel."
I only regret that I took so long to try Mark's idea. Don't be so slow!
* I recommend reading the newsletter I linked to, but this does not mean I endorse everything else Mark Cahill has written or said.