Thanks ladies, last year, hexes were all the rage on the web and I didn't have time to think about them. Usually I fall back on my sewing/seamstress experience. I figured, it's just like a pivot point, or skipping the seams, in this case, just sew up to the seam and leave the seam free. I have done this with lot of things, especially when designing a doll or animal pattern.
With a doll face, where the seam is down the middle of the face, if you sew across the seam, you will have pocket on the front. So either you sew up to the seam or cut the seam way down at an angle. It helps to remember these little shortcuts.