"Wow" is an online buzzword, which comes from the lines in a video: "Wow, wow, wow, wow!" This sentence has been widely spread and imitated by netizens and has become a common expression and mantra. This video was originally told by a China actor named "Shawn Shaw" in the live broadcast. He was interacting with his fans when he suddenly saw a barrage saying, "I think I saw Sean Shaw's face". So he jokingly replied to the barrage with a series of "wow" sounds. This video quickly became popular on the Internet, attracting the attention and imitation of a large number of netizens. Many people use "wow" as their signature or nickname, while others use it as an expression or a mantra. Some people even made various related derivatives, such as T-shirts, mobile phone cases, hand-made and so on. "Wow" is just a simple line, but it has strong expressive force and charm.