Obruni is the Twi word for White man, but it is sometimes applied to African Americans as well. At any rate it is the standard greeting you will receive in the market place if you have white skin. Unlike most racially specific terms it does not seem to have any derogatory connotations.
Today Wiltex finally had tilapia. So I had tilapia, banku, and pepper for lunch. I figure I need the calories because later today I have to go to Accra to teach at the City campus. I also now have a TA for each of my classes. So I will no longer fret about any technical problems.