It's extremely clever. Wills wears black tape across the whole of his mouth area throughout, leaving the comedy to be conveyed by an expressive use of eyes, gestures and a whole succession of "assistants" pulled out of the audience. These become involved in the manoeuvring of balloons, improvised golf clubs and a bath-tap shower hose (for the extremely funny bullfighting sketch) as well as a Chaplinesque moment with shoes taking on their own life and an apparently inexhaustible satchel of incongruous items.
My main criticism would
be that it lasts a little too long with not enough variation of pace.
That said, the crowded Cambridge audience loved every minute of the
show. Wills is a mime artist with the ability to move as well as
humour his audiences. I'd like to see him try.