It's very easy to make those Tiong tourists behave, the Japs have already discovered the method. It was used to deter uncouth Tiongs from stirring shit at Jap restaurants.
Where there are plenty of Tiongs, decorate that place with items that are considered taboo by the CCP regime. For example, Tiananmen, '8964', organ harvesting, Tibet, Taiwan, Winnie the Pooh, Xi's face Photoshop'ed on a pig etc.
Those Tiongs will be so scared shitless, they will not even dare to use their phones to take photos or videos.
ICA jiakliaobees, please take note. Time to decorate your workplace.