(CNN) -- Hillary Clinton's long Africa trip isn't all work and no play.

She busted a move Tuesday at a dinner at the South African Presidential Guest House in Pretoria.

The Secretary of State is on an 11-day tour of the continent to promote U-S investment and trade.

Clinton is also promoting HIV awareness and visited with 94-year-old Nelson Mandela.

Next up on her agenda are stops in Nigeria, Benin and Ghana.

CNN