Day 2 — The Two “Thank You”s, and When to Use Which Cantonese has two thank-yous and they are not interchangeable. 唔該 m4 goi1 — for service, small favours, getting someone’s attention, walking past someone. A waiter brings your noodles: 唔該. 多謝 do1 ze6 — for a gift, money, or a real favour. Someone gives you a present: 多謝. You can add 晒 saai3 to either one to mean “thank you so much”: 唔該晒 / 多謝晒. Question: a friend gives you a birthday present. Which one do you say? First three people to get it right — I will reply.