Take a good look at your sweater. You'll notice that there are lots of little 'v' shapes, arranged in rows and columns. These are the stitches.
Insert your seam ripper in two stitches that are in the same row. If you are using small scissors (like nail scissors), insert one blade into the stitches. Snip.
Once you've got a little hole, you're ready to start popping seams...
