I have been fostering multiple relationships with various thai girls (since 2012).From my experience they play the long game to get you to spend as much $$$ as you can by multiple visits the only way to circumvent that is to offer an exorbitant tip, one that will cover multiple visits and you will be in, also make small talk with the girls, 99% of the time they have a mamasan that gets most of the $$$, it is better you offer them private outcall to your place sometimes, you get more for your $$$, and they get 100% of the donation