If it were me...
1. Square up your stance
2. Left foot half a foot length ahead of right.
3. Both arms Straight.
4. Left hand on the side of the weapon, not under it.
5. Lean forward, nose over toes.
6. Knees slightly bent
7. Krinkle eyebrows.
You can leave step 7 out if you wish, but it helps me. hehe
The reason I use the above steps is because it directs recoil down both arms into your body where it is more easily dispursed. Simple physics.