1. Measure arm from armpit to fingertips.
2. Subtract 3 inches from that distance.
3. Stand with your side faceing a wall, the distance that step 2 equaled from it.
4. Lean away from wall.
5. Extend arm to wall.
6. Push.
7. You have just practice your pass interference
Obviously, you get no PUSH or SEPERATION by simply EXTENDING your arm when you are already armslength away.
2. Subtract 3 inches from that distance.
3. Stand with your side faceing a wall, the distance that step 2 equaled from it.
4. Lean away from wall.
5. Extend arm to wall.
6. Push.
7. You have just practice your pass interference
Obviously, you get no PUSH or SEPERATION by simply EXTENDING your arm when you are already armslength away.