Keep breathing and your movement will not stop.
Have your partner walk using a regular pace and you walk around him as he walks. First pay attention to your alignment and make sure you are choosing your steps instead of following or dragging your body in orbit. Now place the knife in it’s sheath or in your pocket and keep walking. Draw the knife from time to time and work to make it invisible to your partner who in turn will simply walk away from you when he feels the drawn knife or come swiftly to bear hug you. Do this several times and switch roles from time to time to give the head and body time to evaluate and digest. Continue and now pay attention to the distance between you. Your partner who is the walker without a knife will keep a distance in which you cannot stab him without throwing the knife and you have to learn to merge with his path without distancing him. This is awareness and relaxation. You can also do this using many people or with kids using a water gun or a soft pen.