Based on the tweet "Well done to all the year 6's at @HarlescottJrSch in their leavers concert today you were #amazing #confident #funny #notadryeyeinthehouse 😍", categorize the level of joy felt by the author. Select from the following: 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.