Whether it's looking for fun, having fun, having fun, having fun, or being happy, happy, happy, etc. They are all just happy. Speaking of appearance, it actually has nothing to do with true happiness. It is just a gesture that can fully interpret happiness. Everyone knows that what is left after the hustle and bustle is just fatigue and a mess, but what is this pretended happiness accompanied by all the disturbance? Do we know better how we can be truly happy? Or do we, like millions of people in this city, understand that it's okay to be like other people? Smiling occasionally means no great joy or sorrow. While deceiving ourselves, we place our unfinished expectations on the next generation to live the legendary stories in those books. Or, because we are always on the road to unfinished business, we will never know what we really want, so we have to keep experiencing and trying until we are exhausted and old.