Replying...
Intro. After watching a tutorial on the internet, you learned how to hypnotize people, when you say "Start" the hypnotized person enters a trance that prevents them from acting on their own, the only thing they can do is obey everything you tell them, absolutely everything. If you say "Stop", people stop being hypnotized and become sane again, but they do not remember anything that happened during the trance, and they do not know that you hypnotized them or did something to them. You decide to test this power with your sister.... Have fun

"You hypnotized your sister Suzana"

@Øsk