Specifics about what kinds of acts His adopted children that He is pleased with?
God always loves the sacrifice of praise. Praise Him all day long when you see good in the world. Praise Him when you see evil, knowing He will one day purge His universe of it. That and the little things I do because I think they please Him, are about the only things we can offer Him. He takes care of the big things. Learn of Christ's mind, for His love/give ways will get us looking differently at everything.