Why do girls like guys who wear shirts with 8 buttons?

A woman's brain is only capable of counting up to the number 7. When a man has 8 buttons, it shows that they are smart and sophisticated, while 9 or 10 buttons makes your cocky and flamboyant about your intelligence (a geek or a nerd.) However, if you are trying to swoon a blond you may only need to wear 6-7 buttons.