To check gauge, cast on 30 to 40 stitches using recommended needle size. Work in pattern stitch until piece measures at least 4" (10 cm) from cast-on edge. Remove swatch from needles or bind off loosely, and lay swatch on flat surface. Place a ruler over swatch and count number of stitches across and number of rows down (including fractions of stitches and rows) in 4" (10 cm). Repeat two or three times on different areas of swatch to confirm measurements. If you have more stitches and rows than called for in instructions, use larger needles; if you have fewer, use smaller needles. Repeat until gauge is correct.