Hand paths become very important when beginning to understand the idea of tracing.
Tracing involves any movement that brings the hand in contact with the body, or in close proximity.
Tracing has become my favorite skill to apply to advanced movements, and adds a beautiful physical flavor to your Buugeng manipulation.
This video concentrates on a popular move that is also demonstrated by Dai Zaobab in other videos. However, there is a much more detailed breakdown here. Furthermore, this video will help you to understand how tracing can become important in further Buugeng movements.