That said, as far as kind acts in the real world are concerned, I'm of the opinion that tooting one's horn about how kind one is negates the virtue of those kind acts.
I agree, there are things ive done that only god, the person, and i know about.
Not exactly the same point but... I always remember this story about CS Lewis.
One day, Lewis and a friend were walking down the road and came upon a street person who reached out to them for help. While his friend kept walking, Lewis stopped and proceeded to empty his wallet. When they resumed their journey, his friend asked, "What are you doing giving him your money like that? Don't you know he's just going to go squander all that on ale?" Lewis paused and replied, "That's all I was going to do with it."