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: When I can't sleep I watch #glee @druidDUDE @HarryShumJr @HeatherMorrisTV @NayaRivera @LeaMichele @JennaUshkowitz @DiannaAgron