An important principle in systema is do no harm and keep that in mind for this next tactic. Approach from the wrong angle. Consider a stab from the side and move towards it as you conceal your knife withing the body movement and than slide the knife on the body frame to the people you are working with and repeat. Consider your movement and how you use your feet and the angle between you and everyone’s body position. Now do the same empty handed for a kick and so on. Withing your rythem distupt his (or her) and keep your balance so you do not depend on someone else’s movement to time your own. If you do than you are not free. Still with a knife encounter attacks and respond with two seperate hand movements and be aware of your body position. Even bringing your feet together will change the space between you and others and it will disrupt their rythem. Now close your eyes and do the same while you listen and try to learn from first contact, however initiated how the others have placed themselves.