Assess the level of the emotion joy in the tweet provided. Use the following categories: 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: Successful people always have two things on their lips #silence nd #smile smile to avoid problems nd silence to avoid the problems too
0: no joy can be inferred