"It's a very paternalistic, protective view of women, and it seems kind of appealing as a sort of chivalry," Goh said, "But it does contribute to inequality, because these men don't expect women to achieve high goals."
By examining the nonverbal cues, like expression and body language, that men had during conversations with women they were meeting for the first time, Goh found that this form of sexism wasn't just an idea in men's heads. It changed the way they interacted with women nonverbally.
"Men actually act friendlier and smile a lot if they have more benevolent sexism," Goh explained. He measured their ideology using a test called the Ambivalent Sexism Index. It had men rate their agreement with statements like "women are too easily offended" (an example of hostile sexism) and "a good woman should be set on a pedestal by her man" (an example of benevolent sexism).
No matter how the women acted, men were more likely to show patience and friendly nonverbal cues the more highly they rated on the benevolent sexism scale.
"Sexism can appear very friendly and very welcoming, so in the paper we said that sexism can act like a wolf in sheep's clothing," Goh said. "We add that sexism can consciously or unconsciously cloak itself in friendliness, so in a way it's more insidious and treacherous than hostile sexism."
The danger, Goh said, is that interactions are more pleasant when these kind of nonverbal cues are in play. While hostile sexists are less likely to smile and make pleasantries - making them easy to spot - benevolent sexists are actually more likable at first blush than men who truly respect women.
In other words, these men may not be as visible as angry Internet trolls who attack feminism. But they may have as much influence over the societal inequality of women. And they may also be easier to win over as actual supporters of equality - if only we could get them to stop being so charming.