It's interesting to see, but I'm not sure what we should learn from this. It may be useful for multiagent coordination, but in direct interactions... no idea.
This one did make me laugh though: 'Claude 3.5 Sonnet 2024-10-22: "Adjusts seat with a confident yet approachable demeanor"' - an AI communicating to other AIs in a descriptive version of non-verbal behaviour is hilarious.