lǐyóu jiǎnduǎn jiāndìng, zài yòng chá huò yǐnliào huíyìng, tōngcháng jiù néng guòqù

理由简短坚定，再用茶或饮料回应，通常就能过去。

Keep your reason brief and firm, and then reply by offering tea or a drink; that will usually smooth things over