nǐ wǒ lǎo péng you hái nà me kè qi gàn shén me zhè yàng tài jiàn wài le
你我老朋友还那么客气干什么？这样太见外了。
Why all this formality between old friends like us? Anybody would think we were strangers!
见外 (jiàn wài) Definition & Meaning - What does 见外 mean in Chinese
