Task: Determine the appropriate intensity class for the tweet, reflecting the level of emotion E experienced by the user. 0: no E can be inferred. 1: low amount of E can be inferred. 2: moderate amount of E can be inferred. 3: high amount of E can be inferred.
Tweet: They tend to loosen up a bit when drunk, and can seem pretty cheerful.
Emotion: joy
Intensity class: 
1: low amount of joy can be inferred