Instead of provoking an object for a certain behavior that triggers the required congruent state, you can achieve the goal by imperceptibly affecting the object and obtaining from him a statement about a certain state.
If he, for example, himself says that he is in a good mood, then his behavior will change accordingly. How to provoke an object to such a statement? Much easier than you think. When we meet with someone, we usually ask first "How are you doing?", And 99 out of 100 on this duty question answer "Good" or "Normal." This has become a social norm, to which all are accustomed. Even if a person experiences the worst day in life, he probably still will give a standard answer to this question.
A man who said that he had "all is well" would rather answer with a request. Having said this standard answer aloud, we feel that we are obliged to behave consistently, that is, to fulfill the request.
I know what you're thinking about right now. You think that we are so used to answering "good" and "excellent", that these words are pronounced automatically and mean nothing, they have lost their power and can no longer influence our state, much less the behavior and inclination to fulfill requests.