I walked the Vegas Strip this last weekend watching people. I was coming up behind a small group of females on the sidewalk and just about then a small group of rowdy guys were walking towards us. One of the guys, looking at them, clutched his chest and said something. His friend announced to the women, "He said that now that he's seen you he's in heaven." And that was the end of the flirtation, the guys not following up, and the women not responding.
As I passed them it occurred to me that this was a game of cat and mouse, playing at flirtation in practice for when it will matter. The guys would likely agree. They probably wouldn't realize, though, that they were the mice.