First, I take a different approach when looking for an out-of-town SB than I do in my area. If I'm planning a trip, I don't have time for multiple meet and greets to ascertain the fit, so I am a bit more direct. At home, I tend to be more gradual and often leave discussions of menu, length of date, and money until we meet in person. In either case, it is important to be classy and tactful and not at all crude.
If the communication is going well and there seems to be mutual interest, I will ask "Is there anything that you particularly like or dislike in the bedroom?" No one so far has found that offensive. As noted, I don't ask that too early on. An earlier message is used to tactfully note what I am seeking: dinner and/or drinks, some social activity, and some private adult fun. Note the absence of the word "sex" or any sex acts.
In my question about likes and dislikes, I am trying to convey 2 points: (1) I am concerned about her pleasure. This should not be a one-sided activity. (2) I am not going to cross any boundaries and do something the SB doesn't want. That makes her feel more at ease, which is important.
I've gotten a range of answers to that question. Here are some: "I like most things." "I like it all." "I love to suck dick." "No anal." "Anything but anal." "I like it rough." "I don't do oral with someone who isn't my real BF." "No oral on the first date." "I don't like to kiss."
If I get a vague answer, I try a more focused question. I say that I like things slow and sensual, including kissing and caressing. I say that I like giving and receiving oral. (Note that I mention giving first--for her satisfaction.) Then I ask her view on oral. Sometimes I get a general response saying that they like both, like receiving but not giving, or like giving but not receiving. I prefer women who like both. Occasionally, I get a more detailed reply about CIM or MSOG. Typically, I have not asked about CIM, unless I get the sense that the SB wouldn't be offended. In that case, I say that I love to receive oral "to completion."
I try not to be too invasive or too pushy. Often, I am unsure about CIM when we start a BCD session. I just play that by ear, hoping that she allows it. Many SBs do, so I try not to worry.
I almost never use the acronyms or terms that we see on TER. A few times, I have mentioned "BJ," but usually describe it as receiving oral. It is important to stay classy and polite and to avoid being crude. One of the major complaints that I hear from SBs is that guys on SA are crude. Instead of saying that you want to fuck someone's brains out, you can say that you want to make love repeatedly.
Feel free to PM me with any questions.