I pinned the facing right side on right side on the pockets
sewed and serged
then I folded the facing over on the wrong side
and ironed it a little inward
now I served all around the open edges of the pockets and then ironed the seam allowance at front and bottom onto the wrong side
then pinned the pockets onto the front parts
and sewed close and parallel to the edges.
I hope this was helpful for you, let me know if you have any questions left!
keep sewing and smiling