Zheng Tan lay prone on the couch in the living room. The tip of his tails gently shaking.
Zheng Tan liked to think in this environment; as to the shaking tail, that was a habit which Zheng Tan developed after becoming a cat. It started as an unconscious action, just like how some people liked to click their fingers against the table top when they think, Zheng Tan liked to rattle his tail tip when thinking on the couch.
Technically, most cats liked that, but not every cat would delve into the complicated questions like Zheng Tan did. This action might only be a sign to express that they were feeling relaxed, showing that they were in a good mood and was having a cozy life. Or maybe, they were all contemplating about something that was not even close to the complexity of Zheng Tan's questions, but nevertheless unimaginable by the humans. After all, cat's minds are hard to guess at.
