bǐrú búyào dāngzhòng ràng rén nánkān, bù bǎ xiǎo cuò shuō de hěn zhòng, búzài kèren miànqián zébèi zhǔrén

比如不要当众让人难堪，不把小错说得很重，不在客人面前责备主人。

For example, don't embarrass people in public, don't make a big deal of small mistakes, and don't scold the host in front of guests.