My African host family

We've just spent our first weekend with our host families before starting back to school today.
In a brief overview, my family consists of:
My host mother and father,
my 20 year old brother, Edward, who attends college for a communication degree. We don't interact much- his sister says that he's shy. Mostly he seems like a typical teenager- watches tv and communicates mostly in gestures.
my host sister, who is 23 and learning German so she can attend a degree program in Germany. I spend spend most of my time with Sarah- we get along well, although both being reserved people run out of thing to do.
and (although she doesn't live with us) their cousin Ann, who is a 26 year old primary school teacher.