Taught You Everything

"Then let me tell you about the individual in the white shirt on that teacher's left," Jiang Yao said. "He appeared to be around 30 years old. He does not have a beard on his face, and he wears clean clothes. His leather shoes are pristine as well. He was talking with the people sitting next to him. I did observe, though, that he did not touch the coffee in front of him. His nails are round and clean, and his ten fingers are well clipped. On his physique, there is a subtle odor of disinfection. His body reveals that he is a germaphobe, and his habits are healthy. I am guessing he is a doctor."

Jiang Yao, who was also a doctor, recognized the man's profession right away.