"I’m Not Mad. That’s Just My RBF."

"it’s safe to assume that humans have always made The Face. (Doesn’t the Mona Lisa sort of have it?) And it does have its uses. It is great for staring down Greenpeace solicitors on the street, or glaring at men who catcall you on the subway.

At a crowded bar, the expression can serve as a kind of armor against unwanted pickup artists (better, as one young woman put it, “than a fake engagement ring”).

And, as Tanya Tarr, a 36-year-old professional coach, described it: When engaged correctly, it can part a crowd of tourists on a busy street “like the Red Sea.”

But it is also a problem (and, like the word “bitch” itself, one that seems to predominantly affect one-half of the gender equation)...

For many years, studies have determined that women do tend to smile more than men, but not necessarily because they’re happier (in fact, they suffer higher rates of depression). Nancy Henley, a cognitive psychologist, has theorized that women’s frequent smiling stems from their lower social status (she called the smile a “badge of appeasement”). Still others have pointed out that women are more likely to work in the service sector, where smiling is an asset.

And yet there is also a kind of ingrained association between women and the friendly face. The phrase “Stop telling women to smile” has become a rallying cry for the movement against street harassment."
http://mobile.nytimes.com/2015/08/02/fashion/im-not-mad-thats-just-my-resting-b-face.html?_r=0&referrer=

RBF is a pretty solid armor against street randos.

Related: Cara Delevingne; fake smiling is bad for you