It seems a popular way to play with the knotted beads, go for a walk while trailing them behind. They clatter and swing around and sooner or later wrap around your feet and trip you up. Quite a few children in different sessions have played in this way with the beads exploring the lively unpredictability almost as if they are being chased by them.
Taking the beads for a walk
Baby Boo at Horse and Bamboo 