Michael Rosen presents the series on words, language and the way we speak. He visits Circomedia, the circus training school in Bristol, to learn about the special language used by clowns, jugglers and acrobats. Lindsay Camp, who has written a book on the language of persuasion, has hints on how to get one's own way; Philipa Stephenson explores how to make people in photos look as though they are happy and Craig Brown chooses the winners of the competition to invent a proverb. [Rptd Tue 4.00pm].