In this video, a person is seen holding a piece of yarn in their hands. They begin to wrap the yarn around their fingers, creating a small loop. They continue to wrap the yarn around their fingers, gradually forming a small circle. The person then pulls the yarn through the loop, creating a small knot. They repeat this process several times, creating a small, knotted piece of yarn. The person then holds up the finished product, a small, knotted piece of yarn. The video provides a clear and detailed demonstration of how to create a small knot using yarn.