I was going to say much the same thing as ProblemSolving about the singles opener in that it demands investment and compliance right off the bat, so it is rather dominant but also must be used dominantly, just as already said. However, I do not use this opener. I think it is too abrupt, but more to the point I do not screen hard, at least initially, because I think the most important thing is our interpersonal vibe, with some girls I just click immediately, and if that's the case I want to see where it goes, even if it's just like "Sorry, I have a boyfriend" "Oh, haha, lucky him, if that wasn't the case I certainly would have invited you on a date... so your boyfriend is also Chinese?"... blah blah blah. I guess this is not conducive to fast seduction and screening girls till I find the girl I'm gonna take home that night, but at the same time, daygame is a pretty mixed bag in any case and it works best for me if I just take the attitude of making women smile.
Also I have no issue with fucking another man's girl, if she's down, in fact I prefer it because she's less likely to want a relationship even if I take her on dates (but strangely they still try it on, what on earth can they be thinking, hahaha).
For a similar approach to demanding investment and compliance off the bat I like the "shopping bag / cart" opener due to Glenn somebody, a daygame coach that Chase used and whose book Chase recommended in a GC newsletter, sadly I could not order the book cos his e-commerce site was broken and neither Glenn nor Chase responded to my email queries about it. Anyway, based on what they're carrying: "Oh, no! Sandwiches for dinner AGAIN! I have told you and told you, I do not even LIKE sandwiches!"... if she picks up the ball and runs with it (participates in the game), she should be DTF hahaha, although I must admit my delivery needs practice, often she's completely at sea haha.
Going direct is good practice and good for getting out of your head and stopping "ego preserving" approaches, I like the "totally cute" opener... "I was just walking past/sitting here/looking in your direction/I saw you come into the room/I noticed you earlier and [grounding your opener] it was hard not to notice how AMAZINGLY cute you are, I wanted to meet you/introduce myself/get introduced/talk to you... I'm RadEng". I have gotten plenty of dates and numbers with this, it seems to work well on train platforms for some reason... the tailored compliment also works well and is good with street stops: "Stop for a moment! [pre open with an elbow touch] I just HAD to stop you and tell you how AMAZING you look in that one piece dress, are you on your way to an event?"... I also like to introduce boyfriend talk early (logistics talk and hinting at sexual intention)... sometimes in the opener "Texting your boyfriend AGAIN! tsk, tsk"... or, compliment + "... on your way to meet your boyfriend?"... and if she's thirsty she'll say "oh no, I don't have a boyfriend"... ZZzzing game on, go to an introduction. I think much smoother than the singles opener, maybe it's just me?
Hope it helps. Happy hunting
Ray
PS In JP lately just an excited wave at her can do the trick.