Analyze the following tweet to determine the level of joy expressed. The levels are: 0: no joy can be inferred, 1: low amount of joy can be inferred, 2: moderate amount of joy can be inferred, 3: high amount of joy can be inferred.
Tweet: “Among the things you can give and still keep are your word, a #smile, and a grateful #heart.” @TheZigZiglar #Success #Leadership