I'm not really sure that I understand how the author was able to break through (our even detect) his own frame of reference. After reading his description of Mexicans and how their desire for social harmony is interpreted as lying, I wasn't sure how Agar figured this all out. I understood the importance of realizing that language is more than vocab and grammar, but I don't see how to get from that point to being able to detect such frames. Does the author just ask "why did you just do this thing I dislike?" constantly? And how are the people he talks to able to detect their frames, if it's the air they breathe as well.