21 December 2011
Last updated at 21:50
The Duke and Duchess of Cambridge were all smiles as they arrived at the Centrepoint Foyer in Camberwell, south London. The duke has been a patron of Centrepoint, a charity which supports homeless young people, since 2005.
Prince William and his brother Prince Harry made private visits to Centrepoint as children with their mother, Princess Diana. She was a long-standing supporter of the charity, becoming its patron in 1992. This time it was his wife Catherine, Duchess of Cambridge at his side.
The duchess was greeted by Centrepoint chief executive Seyi Obakin. She and her husband were told more about the work of the charity and watched a group session of its Workwise programme - that teaches young people employment skills like preparing a CV - and a performance by the winner of the "Centrepoint's got talent" competition.
Prince William showed off his dance moves with Vanessa Boateng. After she said he'd looked good on his wedding day the Duke came up with the "swag dance" to the delight of the teenager. It involved brushing imaginary dust off your shoulders as your partner copies you - signalling you have trendy threads.
William and Catherine also took part in a "healthy living cookery session" during their visit, helping to prepare mince pies. The royal couple teased each other as they piled mincemeat onto small discs of pastry.
The duchess gave a biscuit she had decorated with heart-shaped icing to Tasha Barbi, who was celebrating her birthday. The 18-year-old said: "I'm going to cherish it - it really means a lot to me. I'm never eating it".
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