Take a group of friends and tart to hit each other at random walking in each others path and hitting whoever is in range of comfort and not straining to hit who you see. Continue by placing a fist on your partner and pushing. Let the fist move by stepping rather than being shoved around and allow the body to move and the arms which are connected to the body move as well and you hit your partner where it is comfortable rather than desirable. Avoid becoming a drum by response and continue to walk and change direction so you see more than one direction and your body remains free. Return to the hitting everyone while walking drill and add hitting to the head allowing the entire body to move as one and the head to rotate on the neck to allow the fist to move but without controlling the direction of the eyes. It is important to keep your attacker in sight if possible and you can accomplish this by combining neck eyes and body movement. Remember to start slow.
Return to the one on one work and now have at least two people come towards you and away from you with strikes and you work to hit them both using the same body movement (step) relax breath and move and keep your fists loose. You cannot foresee all angles in a situation feel and choose how to move without preconceptions.