Been grateful to God or to fellow men is an act of telling God you know what he is doing for you, that is why when you are grateful to God, you will show love to other men. Show love to people in need, waking up alone is enough reason to thank God.
Always learn to give to others no matter how small, because givers never lack, the more you give the more you will be replenished. It also show you are grateful. And always remember to give without expecting in return.