https://zhuanlan.zhihu.com/p/91762838
-This site looks to be offline now.
"MIMICRY
Mimicry or mirroring is a specialized form of harassment in which the stalkers publicly imitate every movement made by the victim. This is trying to copy things in a targets life. Leaving when they do. Dressing like they dress. Throwing out the garbage. Going to the bathroom. Doing whatever the target is doing. This is all designed to be psychological warfare, so that the target again feels like they are under observation at all times."