What I Learned from the GF!! Is it true?

IDK if I worded this right… but that’s what she said in effect.
Girls dress to impress essentially one guy. Girls konw what they want. Usually it’s 1 or 2 guys at a club, not so much the rest, that they have their eye on.
It seems though that Pheromones break these boundaries, even without talk in some cases - such as?