The prince met two former prostitutes in a program to train sex workers in other jobs and got a lesson in condom use Friday from a public health nurse, The Times of London reported.
"He is a nice man," said Jane Nabunya. "He treated us with more respect than many people do."
The Commonwealth, originally an organization of former British colonies, was headed first by King George VI and then by his daughter, Queen Elizabeth II. The British monarch's role is not automatic, and there have been suggestions that the queen's successor could be some one such as former Prime Minister Tony Blair or former United Nations Secretary-General Kofi Annan.
While Charles was touring the Kawempe shantytown, his wife Camilla, Duchess of Cornwall, spent time with a dance group and attended a lunch hosted by Sarah Brown, wife of the British prime minister.