Pulling up the bobbin thread confused me until I tried it myself. Like the PP said, put the needle down and then up again. Then you raise up the presser foot and just tug gently on the thread (top thread) until the little loop of the bottom thread comes up, then pull up that bottom thread (I use the non-sharp side of my seam ripper or you can use one of those stiletto things. Then you have both threads on top. Hold onto those and put the fabric back under the presser foot and then put the presser foot back down and sew as directed above-either taking tiny stitches at the beginning and end or using a regular sewing needles to draw the threads between the layers of fabric.