Step 1: Lay flat on the back. Tell mummy that everything's ok with a smile.
Step 2: Next swing right leg over to the left.
Step 3: If your darn cat is watching and it makes you nervous...
Step 4: ...switch sides. Swing left leg over to the right side. (That'll show the cat to mind her own business!)
Step 5: Then with all your might, flip body to the floor/mat (and remind mummy that next time, set the shutter at high speed for action shots)
Step 6: Then lift yourself up a little such that you can swing your hands in front to prop yourself up. And ta-da, give yourself a congratulatory drool!