Whether on the subway or on the pedestrian street with a large flow of people, there will be such a group of young people who invite passers-by to scan the code and add friends to give gifts. In fact, we are all curious about what these young people do.

The crowds in subways and pedestrian streets are relatively dense, and the cost of "sucking powder" is also very low. Just buy some cheap gifts. According to informed sources, these slimming companies have used "powder absorption" equipment before, but the effect is not ideal. Later, the company simply asked each employee to take two mobile phones, so that each employee could have up to 10,000 fans when filling up WeChat.