language and culture

challenges of language: "i will think about it"- in american English that means heck no -in German that means that it is likely to progress it is a good idea. -in Kenya it means yes i will think about hard if i remember to so not only do you have to learn the language, you also have to learn the dialect and the people come on brain work!! where do you draw the line between changing in line with your new environment and what to keep in the name of self identity?