Great post, Alura, spoken like a true salesperson. My wife always responds if a man approaches her by flirting. A typical first question is, "Which do you prefer, fish or rubber balls?" Two very unrelated things, not at all related to the place. This lets her know whether the guy is agile on his feet, has a thought process as strange as hers, if he's willing to take it further. If he comes back with a double entendre, such as, "Do they have to be rubber?" and makes her laugh, his stock goes way up.
If he simply says, "Fish, why do you ask," he's pretty much flunked the first test, She'll respond by saying, "Well, I'm more into rubber balls. Doesn't seem we have much in common," and she'll blow him off.