Whale eye; lean away; pinned back ears; consider also a suddenly closed mouth.
Widely opened eyes, especially with eye white showing; furrowed brow; tightly closed mouth; slight paw lift;
slight cower; tail down.
Whale eye; slight lean away;
slight head cower.
Whale eye; lean away; closed mouth
Whale eye or averting eyes; bodily
indications of attempt to leave
Widely opened eyes; cower; lean away;
Whale eye, pinned, flattened ears; tucked tail; head pressing away;
closed mouth; brow furrow
(Belly exposure indicates appeasement, not request for rubs.)
Compare to belly exposure inviting interaction:
soft eyes; soft, open mouth; relaxed, open body
Legs braced; feet dug unto ground, tail down; flat ears, brow furrow; closed mouth
Widely open eyes; dilated pupils;
pinned back ears; tight brows;
closed mouth; freeze; stiff body
Significant cower; flattened ears;
closed mouth; whale eye
Squinted eyes; brow furrrow;
ears flat & pinned back;
Conflicted stance; ears flat & pinned back;
extreme tail tuck; hard stare; tightly closed mouth;
whisker bed protrusion; wrinkled muzzle
Ears pinned back; tightly closed mouth; head turned away; lengthened lip line;
limbs close off body
Ears pinned back; nose/lip lick; furrowed brow & muzzle; limbs close off body; tail tuck
Deep cower, slow motion walk, tail tuck; tightly closed mouth; lengthened lip line
Paw lift; head turn away
Freeze, dilated pupils; widely open eyes; ears back; closed mouth;
Refuses food/treats; freeze;
whale eye; ears back; closed mouth
The above are just a few examples of distress signals; there are many others.
When interpreting them, context must always be considered.