You don't need to say anything special. On phone and always, ask for a body rub. Never use the "M" word (massage) in these places. Once in the treatment room, go with the flow, but probably you will have to pay the house fee up front. The girl will probably leave the room at that point and you just have to remove your clothes. If there is a table shower, put on the robe. Otherwise, just lie on the table in your birthday suit face down. Once she returns, the massage will start. Be cool but friendly. A little roaming with your hands, caressing the masseusse's legs as she is working on you, is a good clue for her. Unless she tells you to stop, you may continue that without being a jerk about it yet. If you are too aggressive, you may find the massage cut short, but maybe you want that. Also, act like you are enjoying her massage and touch. Shoudl be easy, no?