7 Things You Can Learn About A Guy Just By Looking At Him

Will he make a good father? Can you count on him? Is he good in bed? To answer these questions and more, find out what you may be able to tell about a man just by looking at him.

1. The Size of His "Boat"

Forget his feet. Look to his fingers to learn about what he's packing. In a recent study from Gachon University Gil Hospital in South Korea, researchers found that the greater the difference in size between a man's index and ring finger, the longer his penis was when fully erect. Before you get out a measuring tape, know that men with a similar finger-length ratio are also more likely to suffer from hormone-related diseases like prostate cancer. Still, the trade off may be worth it.

2. His Drinking Habits

Men with dark eyes are less likely to form a dependence on alcohol than men with light eyes, suggest the results of astudy from Georgia State University. A possible explanation for the phenomenon is that dark eyes indicate higher levels of melanin, a pigment that may speed up impulses in the body. Translation: If a man with dark eyes has three drinks, he may be more blotto than someone with blue eyes, who has less melanin in his body chemistry. Because brown-eyed guys get drunk more easily, they tend to drink less. So they're also less likely to develop an addiction.

3. If He's Trustworthy

According to a study by the University of St. Andrews in Scotland, men with wide faces are perceived as being less trustworthy than men with narrower faces. In a related study, men with broader faces were found to be at least three times as likely to lie or cheat in negotiations as men with narrow faces. The reason? It could be that broad-faced men are, on average, physically bigger, and have more testosterone. They can get away with being aggressive and uncooperative because they're the alpha dogs.

4. His Skills in Bed

Size does matter—just not in the way you think. According to researchers at Erciyes University in Turkey, men with excess body fat last longer in bed. The reason? Guys who are a little "soft" have more of the female sex hormone estradiol in their bodies, which disrupts the transmission of male chemicals, and slows down their orgasms. Because they last longer, they can take their time stimulating their female partner, who on average takes up to 14 minutes to come to her own climax. In other words, ditch the six-packs and start looking for men with a little more girth.

5. His Politics

Want to know pretty quickly what a man's political leanings are? Keep an eye on his gaze. Research from the University of Nebraska-Lincoln suggests that a conservative guy may be less likely to follow your eye movements than a liberal one's. During the study, liberals, who are perceived as being more concerned with the greater good than with themselves, matched the eye movements of a face on a computer screen, while conservatives, whose catch phrase slogan in the upcoming election is "individualism," were almost completely immune to them.

6. If He's Successful

Not only are clean-shaven men considered more handsome than men with beards, the authors of a study in the journal Behavioral Ecology say they're also more likely to be successful. One cursory glance at the Forbes list of the 100 richest people in the world reveals that out of the 86 men on the list, only eight of them sport facial hair. Why is this? Because we tend to trust people more when they are clean-shaven, say body language experts. Then why do 33 percent of American men still have facial hair? Because beards symbolize other traits: maturity, masculinity, a loft in Brooklyn.

7. His Daddy Potential

According to biological anthropologist Helen Fisher, Ph.D., men with a lot of testosterone have very strong jaws and heavy brow ridges. They also tend to be analytical, less intuitive, less verbally skilled, and more aloof when parenting. If you want a man who is more hands-on as a father, then you should look for one with rounder, softer features, whom Fisher says will be "more empathetic, more verbal, more social, more intuitive, and more imaginative."