You probably already know that asking questions of the person you fancy is a good idea.
But it's all about the kind of questions you ask.
According to a widely cited 1997 study by State University of New York psychologist Arthur Aron, people feel more closely bonded when they ask each other intimate questions, as in "What roles do love and affection play in your life?" and "What, if anything, is too serious to be joked about?"
Six months later, two of the participants (a tiny fraction of the original study group) even found themselves in love — an intriguing result, though not a significant one.
In other words, men tend to think women are into them when they aren't, and women tend to not notice when men are into them.
In a 2000 analysis of several of these studies, University of Texas psychologists Martie G. Haselton and David M. Buss offered several explanations for this finding, including that men are raised to see more sex in their environments while women are brought up to be more modest, but psychologists still haven't quite nailed down a perfect explanation for their observations.