We all know someone who ends sentences with the intonation of question mark when it’s actually a statement (ending with a period).

Chances are, this person is a woman.

Why? Research—(interestingly and awesomely) of Jeopardy participants—shows that women are significantly more likely to punctuate their verbal thoughts with a rising voice. More fascinating, however, is that women who are successful do this with even more frequency.

Watch this video for insight into how we can better understand others during communication by following some less obvious cues.

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Editor: Bryonie Wise