First off knit your cuff the length you want. I used Magic Loop and the pattern calls for one-inch cuffs in 1x1 ribbing. Then to help me visualize the knitting being on four double-pointed needles I placed stitch-markers about halfway on each side. Then I added the three additional colors I wanted to use between the stitch markers.
By the way, I only cast on 42 stitches instead of the 48 called for in the pattern. So I had two sections of ten stitches and two sections of eleven stitches. I wanted the mitts to be seven inches around not eight.
The pattern tells you to go to the third needle and pick up the purple yarn in this case and knit to the last three stitches of the blue yarn. To get to the purple section I slipped the blue yarn back onto the left-hand needle.
The directions then tell you to turn the work and knit section two to the last three stitches of the purple yarn. To get to section two, I slipped everything from the right needle on to the left needle.
the Twist for some HiyaHiya needles.
Then you knit to the last three stitches of yellow.
So this is what the finished mitts look like.
Have a good day!