Zuo Rou turned around and took her dressing mirror, holding it in her hands, facing Ning Zhiheng's face.

Ning Zhiheng carefully examined himself and found that when he slightly narrowed the corner of his left eye, his facial expression was very cold and stern, giving off a sense of oppressive scrutiny.

It was only then that he realized that since childhood, he had given people the impression of being aloof and calm. He didn't have many friends, and even among his family, only his mother was close to him. His siblings were even afraid of him, which made him feel that others were wary of him, so he was unwilling to trust others. Over time, his personality became more introverted and suspicious.

It turns out that my facial features and gaze make others feel subtly scrutinized and oppressed.

It seems today's trip was definitely worthwhile, yielding such a huge harvest. I must be careful with this habitual action; I must not give myself away while disguising myself.

A person's gaze is what makes others feel the deepest. Therefore, Ning Zhiheng's habitual gesture gives people a cold and oppressive feeling when arresting and interrogating criminals. In his daily life, he also makes people feel his authority and ruthlessness in front of his subordinates, so that they dare not be negligent. This was originally a good thing.

However, this look might be noticed by those with keen senses when performing a disguise mission.

Ning Zhiheng tried adjusting his teeth and deliberately widened his eyes. Sure enough, his facial expression and gaze softened considerably. Suddenly, he lost that sharp and intimidating aura, and his whole demeanor changed. He seemed to have suddenly become several years younger, giving people a youthful and clear feeling.

This sudden change surprised the Zuo siblings, who were standing nearby. They didn't know that this was Ning Zhiheng's real age. They had always thought that Ning Zhiheng was a high-ranking and powerful man, and that he must be quite old. Even so, they thought that their patron was young and promising. They never expected that the young master in front of them was only twenty-one years old.

"You can try biting on something small on your right side, or chew more with your right teeth when you eat. This can improve your facial expressions," Zuo Rou said softly. As expected of a master of makeup and disguise, she observed Ning Zhiheng's expressions meticulously and immediately found one of his weaknesses.

Ning Zhiheng couldn't help but admire her greatly. He had never paid much attention to Zuo Rou, after all, Zuo Rou's skills were not as good as the Zuo brothers', and Zuo Rou was the Zuo brothers' weakness, so he never wanted Zuo Rou to take risks easily.

Now he understood that Zuo Rou's true strength lay not in combat, but in her support role.

"When interacting with people, relax your shoulders naturally and keep your palms facing upwards rather than downwards. This can release goodwill and reduce people's wariness." Zuo Rou began to remind Ning Zhiheng of some tips. It seems there is a lot to learn here.

When she impersonated Guo Ruxue, she appeared perfectly like a girl from a modest family, without revealing the slightest flaw. If it weren't for bad luck that Chen Yanqing knew Guo Ruxue, no one would have noticed her disguise.

"Also, you usually speak in a flat tone, which gives off a condescending feeling. This is fine if you want to portray someone of high status, but if you want to portray an ordinary person, it would be better to speak faster, which would feel much more natural."

Ning Zhiheng listened attentively to Zuo Rou's words, memorizing every single one. Zuo Rou quickly finished teaching him and said with a smile, "Actually, there are only a few tricks. As long as you master them, there won't be any major problems with the disguise. Young Master, you have a good memory and strong self-control, so you picked it up quickly. You just need to practice more in the future! Another thing is to understand the character. You need to know what identity you are pretending to have and what kind of attitude you should adopt when dealing with people. You are an intelligence agent, so you should know this better than us."

After a long while, Ning Zhiheng put down the dressing mirror in his hand, looked at Zuo Rou and said with emotion, "Hearing your words is truly worth more than reading ten years of books. I underestimated you before!"