A couple tid bits / advice from some adventures!
I'm new to this forum, but want to contribute at least something. Some people on here say don't discuss price at all, just have her do her thing, then pay the amount on this board. I myself am not comfortable with that, as there are also many reports on here about disasters regarding surprise final bills in the 500k and up range. So for myself, when I go "massage" hunting I always clarify the price up front, I don't want any surprises and I don't want to talk about it during the massage. I can personally relax more this way. Second, I often ask the manager / mamasan if I can see the room. If it's a new place, and my first time I ask if I can see the room. Then I get an idea of the layout, room size, cleanliness, privacy etc. Because I also don't want to be in the same room with another guy. I want a private room. Most of the time, the massage girl herself will escort me to "see" the room. This is good because I can ask her if there are any "extras" before I commit to the massage. If no, than I don't waste my time / money. If yes, we can negotiate right there on the spot before I commit to anything.
Hope that helps!