At the political rally, I saw another black person. (Due to Black Allegience) I didn't know her so I gave her the Sup Nod.
Can be used when a white person and a black person are together in a place where there are seemingly very few black people and the white person sees the black people acknowledge each others presence. Steve to Keisha " I saw you smile at that black girl over there, do you know her?" Keisha, " No, B.A."