It depends. Things that make you manly according to your average American would probably include, in no particular order, being good at batting in baseball, being a black person from a deprived neighbourhood and having confused views on life, having anal sex with men in prison, driving a truck, shooting black people, having oral sex with peroxide blonde hookers in a worn out camaro, being a corrupt policeman, being a "gangsta", having a moustache, benching heavy weights, being a republican, making money, being isolationist, shooting burglars dead and pissing on their graves, being in the military, being a nascar driver, being a country singer, playing the electric guitar, being a rap artist, fishing, being suspicious of Britain and a possible reconquest of the former colonies, being proud of your invariably mixed heritage, not travelling abroad ever and mostly refusing to acknowledge the world outside of America, alcoholism and obesity.