You can have a test if you like. Make him happy, test his temperance, see if he keeps his integrity, and don't get carried away.
Enjoy it to test its eccentricity. Make him happy, test his hobbies, and see if he has bad habits and is tired of playing with things.
Anger is a test of its integrity. Make him angry, test his control ability, and see if he can control his emotions without losing his mind.
Fear it, test it. In the case of fear, test whether he can persist to the end, test whether he can be responsible and be a hero.
Sadly, testing a man. When you are sad, see if he has restraint, and test whether he is pessimistic and disappointed and complains about others.
Suffering is a test of a person's will. In a tough environment, see if he has ambition, and test whether he has perseverance and can bear hardships and stand hard work.
In fact, the "mind-reading through the Six Classics" recorded in Lu's Spring and Autumn Annals aims to know people by observing their behaviors under different emotions. It can be called "emotional mind reading".