Starting on one end of the hole, poke the needle through the clothing, passing the thread and needle to the other side of the hole. The double knot should not move from the original side you began with, but instead, be held in place. Make sure to pull the thread and needle firmly in order to seal the hole properly.

If the double knot goes through the other side, take out the needle from the clothing and continue to tie a few more knots. Do this until the knot does not pass through the other side of the hole.

Keep the length of the stitching small and the distance rather close to each other for a more precise stitch.