There was a paper I read in a sociolinguistics class back in college, which observed (for English speakers) that women typically would use “uh-huh” etc to indic

There was a paper I read in a sociolinguistics class back in college, which observed (for English speakers) that women typically would use “uh-huh” etc to indicate that they were listening and men were using it only to indicate agreement with the speaker. The paper claimed that it led the women to think that the men weren’t listening and the men to think that women were agreeing with them when they were just indicating that they were listening.