点头会意

Explanation: ① describe clever Guaijue. ② said Yun Ke, praise. 　　Source: "Water Margin" seventh at the second Chaijin call Yanqing, low Fuer words' you and I'm so so. 'Yan Qing was a knowing nod of the people, not fine to ask, Huoji down the stairs. " 　　Examples: After listening to the soul ~ Mandarin, they followed the Qin, Ke Qing away. ★ "Dream" the first one by one back