Look at the tweet "@EmberXiao ❝ Ah, I see! Clever! ❞\n[Ruby nodded her head, putting her hands by her sides before smiling up at Yang.]\n❝ Hehe, since when--" and classify the intensity of the emotion joy. Your options are: 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.