Leave the pins pushed through and hanging out the back until you get to each one in turn. The
next pins you will add will run horizontally, joining the seamlines in front and back together. The pins will run next to the paper edges or, if you have traced around the pattern first, along the pencil line.
left to right:
(Pin #1) Secure a pin horizontally along the seamline immediately
to the right of the beginning pin.
(Pin #2) Secure the beginning pin
(Pin #3) Secure horizontal pins along the line (as many as needed),
each one to the right of its neighbor, until you reach a match point or the end
of the seam. I usually pin close enough so they are almost head-to-tail. (The
longer the seam is, you can usually put more space between them.)
#4) Secure any match point pins vertically as you come to it. If this were a longer seam, continue
pins horizontally to the right.
(Pin #5) Secure the last pin horizontally along the
seam line. The seam is ready for sewing.
Basically: first pin and match points are vertical.
All the rest are horizontal.
When you sew the
seam, sew slowly from edge to edge immediately next to the paper pattern. Do not
pull the pins out early-- as the needle gets to the sharp end of each pin, hold
the head of that pin up lightly and the fabric will feed right off the pin as
you sew, helping to keep the seam exactly as you have pinned it.