Obviously a newbie mistake but should be forgiven as we don't seem to have posted some "rules" with regards to tips. The girls must have loved bro scandalz long time...
My newbie mistake was not tipping them or at least the first two nights then I realised something was wrong with the unhappy looks and then started to learn from there. Buying them a nice meal (to most of them it means Jollybee) helps to minimise the not tipping thing a bit.
glad you had fun.