I cut off the sleeve along the Fold Line that is indicated on the pattern. A piece of fabric the length of the sleeve (you can see in the picture that I do few things exact) and 1" wide. Using a 1/4" seam allowance, the band was then stitched to the sleeve. The side seams of the shirt were then stitched and trimmed. Turning under 1/4" of the raw edge, the band was then slip stitched on the wrong side of the sleeve. * This is the same technique used in the pattern for the neckband.
Of course the shirt looks its' very best when on the baby! Our little guy is 1 month old today. How did that happen?