The faster you add stitches the shallower the shawl will be. I added 2 stitches at a time the for a few rows and then stitched to only adding 1 stitch per row. You may want to alternate between 2 and 1 stitch just remember to be consistent. After you have incorporated all the stitches into the knitting, knit a row or two. End the shawl with an i-cord at the neck edge.
Detailed instructions follow.
Short row shaped shawl. Finished size 67 wide 28 deep. When working on the edge piece always slip the first stitch as if to purl. In other word, bring the yarn to the front. Slip the first stitch by placing the needle into the front leg.