For those of you who are not familiar with English Paper Piecing, it is a traditional method for hand piecing quilts. The fabric is basted around a paper foundation and held to shape by the paper so that the pieces can then be sewn to each other.
Some people use glue or a fabric glue stick to baste the fabric to the paper foundation. I prefer to thread and baste them without stitching through the papers. This way the basting can stay in after the papers are removed. The basting stitches will keep the seam allowances in place until the quilt is put together with the backing. Here's a picture of one that I have basted. I take two stitches to start - the second stitch traps the thread tail and keeps it tucked toward the center. Then, since I'm left handed I proceed counter clockwise turning down the seam allowance and taking one tiny stitch to hold the fold together. On the last corner I take two stiches so that I can again trap the thread tail. This method is pretty quick.