If you decide to take one of them to the room, you need to pay a tab at the karaoke bar.
Police in the country like bribes and they’ll question you to try to get you to pay up.
However, being caught is unlikely and most people behave as if they don’t really care about the risks.
Some waitresses at restaurants and some girls in karaoke bars double up as prostitutes, the Karaoke ladies tend to be younger and more attractive than most other working girls.
Attractive waitresses do not make up a large percentage of the Saigon prostitution scene, and it can be difficult to tell which ones are available.
The girls that are available will be flirty and ready to have a drink with you.