Squinty eyes? Check. Strong jaw? Yep. Young Paul Newman in a publicity still from "The Left Handed Gun" demonstrates the features of a high-testosterone face.
Whether a strong jaw wins a guy much sway with the ladies may depend on what country he lives in.
Scientists have found that women in less-developed countries are more likely to prefer guys with faces that hint at high levels of testosterone than women in more-developed countries. That may be because women in less-developed societies are more focused on good genes for their offspring, whereas women in more-developed societies with less fear of disease may care more about commitment, said study researcher Fhionna Moore, a psychologist at the University of Dundee in Scotland.
For the rest of the story: http://www.livescience.com/28242-macho-dudes-preferred-less-developed-countries.html