Evaluate the intensity of joy in the tweet "It takes less #muscles to #laugh than to #frown - stops facial &amp; mental aging too! Laugh strongly &amp; often to #lead effectively! #leadership". Choose from these 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.