Some expressions for my marsuraptor sophonts.
Pseudoear position is usually the best default indicator of mood and the one marsuraptors look to most when trying to gauge how another is feeling. Although it is also the easiest for marsuraptors to control and fib.
Eye pinning and head movement movement on the other hand is mostly involuntary but a lot more subtle. Teeth baring for both fear and anger is usually a lot more rare. Generally in marsurptor society showing your teeth or even opening your mouth outside of eating is considered VERY rude, and with it being something that is fairly easy to repress, it is usually reserved for extreme/uncontrollable bouts of emotion.
Marsuraptors also tend to emote very silently, with them lacking the ability to produce much sound outside of the nasal vents used for speech. In the absence of any instinctual noise cues, some marsuraptor cultures will include words that effectively mean "I am feeling (emotion)" to add a verbal component to expressions, although this is something that is far from universal.
Along with this, cultural expressions also include body language, which, like with humans, can range from long distance greeting gestures to rude expressions.
Also bonus silly I accidentally made while messing with layers:
