Plan their next trip out..........
Most compounds will have social groups that do charity work, learn photography, go on internal tours, organize social balls, do yoga, craft work etc.
One such organization is TICA (The International Community of Angola)
Another very interesting and worth while group is
where you can learn a lot about Angola and participate in some of the tours/ conservation work etc.
Generally once you are there and make yourself known people will seek you out.
GG