All you need for this game is a circle of children with lots of energy! This is an old favourite.
This children sit around in a circle, facing each other. One child is chosen to be "it" first.
That child who is "it" stands up and walks around the outside of the circle tapping each child on the head and naming them "duck". At some point he chooses a child to name "goose" instead, at which point the fun begins.
The goose must now jump up and chase the first child around the circle, trying to tag him before he can sit down in the goose's place. If he tags him, the first child has another go. If he fails, he becomes "it".