Suddenly there is a person doing hip-hop on the street, and the people behind him are doing hip-hop. What is this called?

This is called a flash mob party, flash mob, flash group, etc.

"FlashMob flash mob", they generally have high education and fixed occupations, and only have daily contact with people. There are many opportunities for computers, and they are willing to try some new behaviors. Of course, the premise is that words and deeds that harm society and endanger safety are not allowed. Flash, Flash, flash as soon as it is done. After entering the real society from the virtual world of the Internet, you must flash back to the virtual world quickly and never recognize each other. If you ask other flash mob friends: "Let's go clubbing together...shall we?" that is a violation of the "rules" of the flash mob.

In Japan, there were flashers who agreed to wear a black suit or suit, a white shirt, a black tie, and black sunglasses, appear in a square at the same time, and then pick up their mobile phones and walk around together. Phone call. When hundreds of people showed up as agreed, everyone around them was stunned: as if they had suddenly entered the "Matrix". While people were still stunned, a whistle suddenly sounded, and the "hackers" quickly evacuated the scene from all directions, and disappeared without a trace in about 10 seconds.

"Flashers" are mainly young people who chase fashion and seek novelty. They communicated through text messages and carried out this "flash mob" activity with the support of Suzhou Mobile. They divided themselves into six "tribes": culture, sports, games, audio and video, entrepreneurship, and tourism. Under the leadership of their respective "tribe leaders", they lined up, high-fived and dispersed. Chenchen, a first-year girl from the School of Education, is one of them. She said, "This is a way to express youthful passion and it's fun." But more bystanders were a little confused about this and didn't know what they were doing.