禮多人不怪 (lai5 do1 jan4 bat1 gwaai3) — no one could fault you for being too polite in Cantonese
laiˏ₅禮doˉ¹多janˎ₄人batˉ¹不gwaai˗₃怪简 礼多人不怪
Mandarin Pinyin: li3 duo1 ren2 bu4 guai4
Meaning of 禮多人不怪
nounno one could fault you for being too polite
nounone can never be too polite; civility is always welcome