Telling two people to be selfish barely changes their behavior, unless they both know they got the same message! Our #CogSci2026 paper reveals that these group expectations only matter when we all know that we share the same expectations.

🎤 "Your #CogSci presentation was quite good this year." How flattered or offended will you be? The answer may depend on whether you speak British or American English 🇺🇸🇬🇧. Our new #CogSci2025 paper reveals systematic differences in how different cultures interpret the same words.