Most Helpful Guy
Every African American or black girl is unique in her own ways just as any latin, caucasian, middle-eastern or Asian girl.
I've dated a white American, African American, Brazilian, white British, Cameroonian, Mauritius, Mongolian, Moroccan and white Spanish. There's no specific personal qualities that I experienced, which could be ascribed to a particular race. Therefore, I don't think there is a particular approach to get an African American girl.
However, you do need to understand the values of each girl when approaching them. For example, my ex Moroccan girlfriend is a Muslim, which was a factor I adapted my approach during the courtship period.