Yuuupp it's biology time

So I'm trying to compile SOME sort of reference for the inkfolk species themselves... body language is an important facet! So here is a simplified version of some examples of how inkfolk (in this specific case, octofolk) express themselves through color and various other things. It's not particularly difficult to figure out if an inkfolk is mad at you - the other emotions might be more subtle if you're not an expert.