Yarn over (yo)
Step 1: Hold your knitting needles with the working yarn in your right hand and the stitches you want to work with in your left hand.
Step 2: Position the yarn to the front of your work. If it's not already in front, bring the yarn between the two needles to the front of your work.
Step 3: To create the yarn over, simply bring the working yarn over the right-hand needle and to the back of your work. This motion creates a loop of yarn around the right-hand needle.
Step 4: Continue with your knitting pattern, whether it's a knit or purl stitch or any other stitch required. The yarn over will create an extra stitch and an eyelet hole in your work.
Yarning over is an easy knitting increase technique that results in the creation of a small hole in your fabric. These tiny openings are commonly referred to as "eyelets."