"A man's actions — especially the ones you see in unguarded moments when he's not going out of his way to try to impress you (or doesn't realize you're watching) — can speak volumes about his character and personality traits," says Rita Benasutti, Ph D, a psychotherapist who specializes in couple's issues.
"Hard-core smokers he could be a hard nut to crack.
"The fact that he chooses a communication method that allows him to edit what he says signals that he might not want to show his true self," says Jeff Bryson, Ph D, professor of psychology at San Diego State University.
But on the bright side, he's probably more empathetic.
His Sexual Style You can't judge a guy by one night in the sack (they get first-night jitters too), but a couple of booty calls can offer plenty of personality clues.
"PDAs are statements of togetherness," says Nakamoto.
"If he has doubts, he'll keep his distance physically." Whether He Always Drives or Wants You To "A guy who doesn't automatically assume driving rights is sweetly old-fashioned at best and, at worst, could be a control freak.
"If he always pays in cash, are risk-takers, which can make them a lot of fun.
"But their over-the-top optimism that they'll come out ahead makes it difficult for them to face reality," says Mitchell Parks, MD, assistant professor of psychiatry at Vanderbilt University, in Nashville.
You don't have to date a guy for six months to get the lowdown on who he really is.
With the right clues, you can size him up in 10 minutes.
But it also might be hard to get into a serious conversation with him, which can be frustrating as hell.