yóuqí shì xīn péngyou, kèhù hé zhǎngbèi zàichǎng shí, zhège fēncùn hěn zhòngyào

尤其是新朋友、客户和长辈在场时，这个分寸很重要。

Especially when new friends, clients, or elders are present, this sense of propriety is very important.