11. Reposition the Thread Again
Reposition the thread (like you did in Step 6) by passing up through the last bead in the third row.
12. Start the Next Row
Begin the row by stitching another pair of beads. In the upper photo on the left, I'm passing through two beads at a time for efficiency; even though the needle looks like it's going sideways, it's having the same effect as passing down through the second from last bead in the third row and up through the third from last bead at the same time.
13. Complete the Row and Reposition the Thread
Stitch back to the other edge of the beadwork, and reposition the thread to start the next row.
14. Keep Stitching to Your Desired Length
Keep stitching one row at a time, back and forth, to your desired length of beaded band. In the example, I just made a little square swatch of beadwork for demonstration purposes.