Maybe, but in animated things (like rick and morty) they, occasionally, have aliens that are vaguely essentially anthropomorphic animals and give those expressions.
So it's not entirely.. human. My point being that we can have the expressions of a human face on a non-human face
> My point being that we can have the expressions of a human face on a non-human face
To bring up the example of the octopus again, you can still get some sense of "expression" like anger etc. when they change their skin colors, without having a relatable face at all.
Or something more common: Dogs wagging their tails, cats pointing their ears, and so on.
So it's not entirely.. human. My point being that we can have the expressions of a human face on a non-human face