God is the note-taking heavenly observer. He knows about the time you bit your tongue when you could have contributed to a rumor. He takes notice every time you greet a stranger or visit a person in the hospital or prison. Every secret act of character, conviction, and courage has been observed in living color by our omniscient God.
You always have an audience. In every activity and in every conversation God is present, and He says, "I saw it. Carry on! Do it again. I am going to reward you. I am going to repay you. You have not been working in vain."
Obviously your good deeds won't make God love you more (His love for you is operating at "full strength" already), but it's good to know He celebrates your good deeds -- even when they go unnoticed by others.
-- Bill Hybels in The God You're Looking For