no problem. i guess the humor was lost on me
you bring up some points like the volume/English level making some communication difficult, and i've encountered that for sure. that only complicates the asking of certain questions even more.
i have been to, for example, Cascades enough times to know the type of place i am in, but i still haven't asked before i've gotten the LB back to my place. there is an LB there named Mild (who is actually an awesome person but is currently pissed at me for some reason) who i thought might top, but i didn't ask, so i didn't find out until we were at my condo that she only bottomed, which was a letdown. they don't intentionally keep the answers from you, but yeah, it would be easier if they just had something subtle. when you're at a GG bar, you know who the top and bottom is because she doesn't have a dick, but when things aren't so obvious, why not make it just a little easier. hell, even make all of the buttons white with colored numbers...
it's not like it will happen, but it would be nice if it did. i don't see why anybody would protest against it.
Your idea about colored numbers isn't terrible, but I can see where some LBs might object to advertising themselves as tops. What happens when the inevitable big fat stinky tourist waddles in the door looking for tops?
From a bar manager's perspective, however simple it might be, it is yet another thing to keep track of and yet another expense, however small. Then they'd have to educate their customers on the color coded system with signs. I can easily see the average bar manager brushing that idea aside. Especially since (pun intended) it will have zero impact on their bottom line.
Try using this approach and let me know how it goes.
Open with the normal banter, introductions and compliments, all that crap, but don't bring up bar fines first. In a place like Cascades, the LB will bring it up quickly, so you shouldn't waste too much time.
Once the LB opens the door, you can say something like, "I don't know. What do you like to do? You have power? Can get strong?" Etcetera and so on...
It will probably cost you a lady drink, but I've chatted with a LBs in there without buying lady drinks before. As it has been said in here many times before, nothing is fool proof, expect a dud once in a while, but if you are getting mostly duds, then it might be your interview process.
Since you mentioned taking them back to your condo, I guess you are going LT with them. I usually avoid going long time, unless I've been with them before. I hate the short time rooms in Nana, but I would prefer a ST test run before I go LT with an LB.
Besides, from some of the LBs financial perspectives, they can actually lose money going LT depending on what time of the night it is. That alone will increase the odds that they go to their standard bag of tricks to get out of your condo as soon as possible.
Another thing to consider if you are taking them LT, is offering them a Viagra. I like the very feminine LBs too and I have found that it works on LBs that are on hormones. Maybe keep some Zantac on hand to counteract the indigestion it causes.
Despite the fact that they are prostitutes, I still try to be charming and fun to be with, I'm assuming that you do that too, and since you apparently live in BKK, I'm guessing you are getting a handle on some of the cultural differences.
Other than that, I don't know what else to say except good luck!