Occasionally someone will tease me about how I say a certain word. This website is amazing. It explains 22 of the most popular differences in how we say certain words and sounds in various parts of the country.
I have tried to adapt – I now call them sneakers (not tennis shoes). I typically call it soda (not pop). and I try to say the word "roof" like those in the east say it.
But this website is really interesting. Here is an example:
Click HERE to see all 22 maps and explanations.