contrary to popular and STUPID belief, brown does not describe those of middle eastern or hispanic descent. those of hispanic descent have their own color - latino, and most middle easterns are of their own color - arab, so arab and brown are not the same ethnic group!
brown people are generally made up of south asians (indians, bengalis, nepal, sri lanka, etc..) and also some of south america, like guyana
"Yo Omar my brown homie lets go and chill at the mall buddy!"
"For the last time you idiot I'm not brown im Arab and PROUD! You wanna hang out with a brown guy so much, go talk to Russell Peters!"