I'm still a little confused about tipping in Vietnam.
Today I went to get a check-up at a local hospital. I parked my motorcycle at the hospital, and the attendant gave me a ticket. About one hour later, I gave back the ticket to the attendant, and I tried to pay him. He refused my payment. Actually I was shocked that he refused my payment.
1) When should you tip at restaurants, and when you should not tip? How much?
2) What about tipping motorcycle attendants? How much?
3) What about tipping the ladies at coffee café, karaoke bars, etc.. How much?
4) Who else should you tip?