Determine how strongly joy is expressed in the following tweet. Use the scale: 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: Learning is key while converting your leaning to someone else is door, so when you do both you will open the door of success.\n\n#x33 #smile
2: moderate amount of joy can be inferred