The whole group is split into groups of four. Three of the people in the group hold hands in a circle with one person stood on the outside. One person of the three is chosen to be the person being chased. The person on the outside has to tag this person. It is up to the other two people to make sure this person isn't tagged, without breaking the circle. If the group as a whole is smaller or larger, the number of people in the circle can be adapted, it doesn't really matter.