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: Old saying 'A #smile shared is one gained for another day' @YEGlifer @Scott_McKeen
1: low amount of joy can be inferred