Just Offer your Service. No Sale needed
Most of these places and workers would do very well if they just provided a consistent service, asked the customer what they liked and then tried to provide if they can.
Called in asked for Lisa at Rejuvenating Spa because she provided the BEST regular massage I have ever had. She actually listened to what I said then tried to work on those areas even though her English was not the best. Now when I ask for her, they try to get me to use someone else. Even tried to call me back twice and ask why I do not want another masseuse.
This seems to be weakness of all Asian Spas. Making an appointment with a specific worker is very hit or miss.
All the above was talking about a regular massage in case you get the wrong idea.