Code switching

Have you ever heard of code switching?  It seems to be a new term from something that people have done for a long time.  In the United States people are studying the phenomenon a lot now.

http://www.npr.org/sections/codeswitch/2013/04/13/177126294/five-reasons-why-people-code-switch

If that didn´t explain it enough, here´s a video:

https://www.youtube.com/watch?v=7Na4UvRIhu4&t=229s

Do you code switch?  I´m looking forward to discussing this topic with you on Tuesday.