What happens during the section called "Giggle Box"?

The TV series was starred and created by Justin Fletcher, who plays the characters in all of the comedy sketches and also wrote a few sketches in its first series. Some of the sketches are filmed in the studio, while other sketches are filmed outside; for example, one is filmed at Portmeirion, used for the fictional town of Wiggyville where Captain Adorable's sketches are set from Series 1 to 2. The show is interspersed with a selection of children called the Gigglekids, who tell jokes to Justin himself, in their own section called 'Giggle Box'.

Children called the Gigglekids tell jokes to Justin.