I whip my stitch back and forth, I whip my stitch back and forth. To begin the whip stitch, take your sewing needle and thread it with a length of matching yarn.

Take your two crochet pieces and line up the edges with the right side facing upwards.

Take your yarn and thread it through the back of one of your pieces, leave a tail that you can weave in later.

Take your needle up through the first stitch from the back to the front.

Next, take your needle through the corresponding stitch on your other piece from the front to the back.

Repeat steps 4 and 5 until you reach the end of your seam, making sure to keep your stitches aligned.