言笑不苟

Explanation: Do not just talk and laugh. Describe the attitude of serious and solemn. With the stern. " 　　Source: "Second moment surprises," Volume II Miao Guan change to teachers, self-esteem, kind of makeup do die, do self-restrained, careful words laugh. " 　　Examples: Again the United States, children, small steps must Su, ~. ★ Liang, "Reform through school baby talk."