They sure do have their usual routines. You can go with the flow but don't let them suck up time e.g. having a long shower or talking to you for a long time while still dressed. It's your time with the girls so keep an eye on time. Don't be aggressive or rough with the girls. Some customers have this view that since they're paying than they can do whatever they like and treat them badly. If you treat the girls with respect and be friendly, in most cases you will come out with a huge smile on your face.