Trying to understand cats involves studying their body language, especially their facial expressions. The University of Guelph in Ontario recently asked 6,000 volunteers to watch cat videos and decide the emotional state of the cat.
Most volunteers got about 60% of the response correct but 13% of the participants scored 75% or better. Many of those who scored better were veterinarians so it’s possible to learn the facial expressions of cats if your life depends on it.