In Beijing in 1972, during Mrs. Nixon's visit to China, before eating at the restaurant, she specially proposed to go to the back kitchen to see. This was not part of the visit, but to satisfy her curiosity, the reception staff led her to the back kitchen of the Beijing Hotel. Just like Grandma Liu entered the Grand View Garden, the first lady's eyes were not enough, she was curious about what she saw, asked in detail about each cooking process, and even instructed the accompanying staff to take pictures and go back to do it themselves. Mrs. Nixon also picked up the chopsticks and tasted the dishes made on the spot, watching her eat, the chopsticks were used very well, presumably they had been specially practiced before coming.