Assess the level of the emotion sadness in the tweet provided. Use the following categories: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
Tweet: Had to give my 11yo AfAm son this advice today: 'be polite, no sudden movements, keep hands where they can see them'. #sadness
2: moderate amount of sadness can be inferred