Used mainly for hemming fabrics where an inconspicuous hem is difficult
to achieve (this stitch is also useful for securing binding on the wrong
side). Fold the hem edge back about ¼" (6 mm). Take a small stitch in
the garment, picking up only a few threads of the fabric, then take the
next stitch ¼" (6 mm) ahead in the hem. Continue, alternating stitches
between the hem and garment (if using for a non-hemming application,
simply alternate stitches between the two fabric edges being joined).