STEP-BY-STEP K2TOG KNIT TWO TOGETHER

Insert the point of the right-hand needle through the loops of the next 2 stitches as if to knit.

Wind the yarn round the tip of the right-hand needle and pull the yarn through the 2 stitches, knitting them both together.

Drop the 2 stitches from the left-hand needle and keep the new stitch on the right-hand needle.

Knitting 2 stitches together decreases your stitch count by 2, and the decrease stitch leans to the right. This is how a series looks.