This manifests itself in humans in so many ways that you can probably find an example in the room you're in. Like lipstick. A study in France showed that women who wear bright red lipstick get a tip boost from men, which is a big deal because France already includes a 12 percent gratuity charge on receipts (lady patrons weren't nearly as impressed by their red-lipped waitresses). So what if red lipstick makes you look like Pennywise and you prefer peach or nude? Wear a red shirt instead. Another study found that men give 14.6 percent to 26.1 percent more to waitresses wearing red shirts.
The researchers noted that the rise in tips by male customers could be due to red being "associated with an indication of estrogen levels, sexual arousal and health" (hint: all of this comes back to the fact that red is the color of blood), so when a lady wears red, it tricks a man into thinking that she's ready to mate. At which point he will happily give her whatever she wants.
"Can I get your dongs any more boner sex? Sir, why are you looking at me like that?"