Major, my dog, gets treats for doing "work," or a training session. Oh, all right, and sometimes for nothing at all. (See the treat sitting on the edge of the chair?) Here, the trick is to "wait." He does real good, and if you look closely, a bit of drool is beginning to form, in anticipation.
Yummy food is a great motivator. Hey, I know that personally, too. But let's not go there.
Major learned this behavior by repetition. At first he would see the treat and be eager to do anything to get it. After a while he did commands without the treat. Conditioning. Receiving praise and attention from those he loves is enough, but treats are always appreciated.
"Then they asked him, "What must we do to do the works God requires?" Jesus answered, "The work of God is this: to believe in the one he has sent." John 6:28-29
God requires no tricks to please Him. So why do I think I "must" do things to get His treats? When once I realize I only need to believe and trust in His Son, then all the treats in heaven become mine, too. My works happen out of love for Him. No drool necessary.
I'm glad God never runs out of treats.