We will begin by selecting
and naming various parts of the head that
we will want to manipulate. You might do
this for each part before you begin doing
anything else, but for now, let's just make
them as we need them.

For instance, I selected
the eyelids, as shown below, and used the "Display
/ Grouping / Change Part Name" tool to give
these polygons a selection name (this is
not the same as a surface name - part names
are used for selection purposes in Modeler,
something like Point Selection Sets, but
for Polygons).

Next, we want to establish
a baseline setup for the various facial
parts - I like to set this base shape to
a midpoint in the motion that part will
have - the mouth partly open, the eyes
partly closed, the jawbone rotated about
half way through it's typical range of
motion. With some animation setups, this
would help to minimize stretching, but
with morph targets, I do it because of
the linear translation between targets
- so for instance if the eyelid had two
targets (opened and closed) and we morphed
between them, the points affected would
travel in a straight line from start to
finish, passing through the eyeball, and
not quite looking right anyway.

I established a baseline
for the eyelids by making the eyeballs visible
in the background layer, and rotating the
eyes to a half-closed position, as shown
in the image below. I also used the stretch
tool to keep the eyelid close to the eyeball
- we don't want a gap to open up between
the two.

Now we start by selecting
the Eyelid for the left eye (use the part
name to select, and then deselect the other
side), and making targets for it. The procedure
is shown in the image above: 1. select the
polygons, 2. choose "M" Morph map mode, 3.
select "new" from the popup list, and 4.
Give the new target a name. Be sure to use
a period (.) in the name, and make the targets
for a given part all have the same prefix,
or your morphmixer will be all jumbled up
later on.(i.e. make all the Left eyelid targets
with the prefix "Leyelid", and so on).

Since we called the first
target "Leyelid.Open", you'll want to open
the eye back up. I only opened mine to a
normal (relaxed - open) pose. If you also
want extremely wide-open eyes (for a take
or to exaggerate surprise), use a separate
target for that pose.

Be picky about point placement
as you make these targets. I'm only editing
six polygons, so is pretty easy to grab each
point and drag it if necessary.

As well as editing the
eyelid itself, we need to stretch the eyebrow
a bit - look in the mirror and open and close
one eye, and you'll see why. Select the two
polygons shown below, and scale them vertically
about 5%, with your cursor centered at the
bottom of the selection, as shown.

Select the polygons on
the left cheek bone, and pull / stretch them
down just a touch (something like what we
just did to the brow).

Next, make a new target
called "Leyelid.Closed" and edit the eyelid
so it is closed, (but not squinted squint
will be separate target). As shown below,
we'll also want to pull / scale the eyebrow
down a bit, and inwards from the outside
corner.

Now select the whole left
half of the forehead, and pull it down a
wee bit, to simulate the movement of the
muscles above the eye when the eye is closed.

The cheekbone area should
be pulled up a tiny bit towards the eye for
this target - I did this by editing the three
polygons shown on the left below. As well,
select the polygon (s) at the outside edge
of the eye-socket (as shown on the right
below), and scrunch them down a bit (i.e.
draw the top one down, and the bottom one
up).

In case the procedure
is unfamiliar, the steps to try this out
in layout are: 1. Save your model, 2. Load
it into Layout (or send it via the Hub),
3. Select the layer / object with the skin
in it, and open the Object Properties panel,
4. Set Subdivision Order to "Last", 5. Apply
the "MorphMixer" Displacement plugin, 6.
Open the Morph Mixer interface panel, and
7. Use the sliders to animate your model.