The feet are the roots - motivated by the thighs, controlled by the waist, and manifested in the fingers. Shoulders should be drooped and relaxed.
Legs protect the groin.
Use evenness in all movements - not quick at one movement and slow at another. Interruption of movement is the gap in space and time which allows us to be attacked. The mind controls everything. When one part moves, every part moves. You either move away in the same direction of the attacker or move to the side and stick to him.