That last line though. I am probably interpreting it differently but there comes a point when you realize: "If all these guys who weren't going after me before are going after me now when I wear this/act this way/etc, is it possible that they are doing this for all the wrong reasons and aren't really worth it?" In my experience, you get jealous of the popular girls who get tons of male attention, but when you actually look at those guys, you realize you have no reason to be jealous because you're not missing out on much.

Obviously, people are usually first drawn to people they find attractive, and the relationship goes from there. So on its own this isn't a bad thing. But in general, guys who are too focused on that (such as they won't even acknowledge or consider a less conventionally attractive, less popular, and/or less revealing girl) are jerks anyways -- there is an undeniable correlation. It's much more beneficial and challenging (something I like, but others may not) to play the system by getting them to "notice" you in a different way, as a friend and a unique person first. To use the word choice of another commenter, I guess it's cynical, but so what? There's something disappointing and defeating in taking the easier route. That's not to say the girls who do take that route are bad or even that it is easy for them, but it's just a personal choice and yeah, it's a bit cynical haha. But honestly it helps you weed out the "bad" guys, the ones who are shallow and value looks/popularity too much.

TL;DR - being yourself is good. dressing up in a way that isn't really "you" for the sole reason of getting guys is almost always bad. it's best to be genuine because then you will much more easily find a genuine guy who likes you for yourself.

/end rant