Cadbury Gorilla and what it means?

Straight from Cadbury themselves - "The actor inside the gorilla suit, Garon Michael, was an experienced animatronics actor who has appeared in Congo, Instinct and Planet of the Apes. He’s spent a lifetime perfecting his gorilla art with visits to observe the animals in their natural habitat, on film and in zoos. Gorillas have a dominating visual presence as the largest of the living primates. They exhibit lots of human characteristics which when applied to a human activity like drumming, means movements can look exaggerated. Its movements are also generally slow, meaning that the anticipation of waiting for the moment when the gorilla hits the drums is built up adding additional theatre and drama to the advertisement before the full music kicks in."