These decreases will shape the earflap. Instead of doing the decreases on the very edge, do them one stitch in from the edge. So you would knit one, decrease (probably a ssk,see the Glossary tab above if you need to) knit across to 3 stitches from the end, knit 2 together and knit one. Knit 3 rows and then repeat the decrease row. You want to do the decrease row 4 times total with 3 rows of plain knitting (no decreases) between the decrease rows. Then decrease every 8th row until you're down to 4sts on the needle.