Note: This is not from a Yankee. A Yankee is someone from the North. I am a DamnYankee - someone from the North that came down and stayed.
A comment on Y'all -
When I moved to the Northwest Arkansas area from Minnesota, I was introduced to "Y'all" in normal everyday speech. I have noticed while traveling around, and meeting folks from around South here for the Wallyworld headquarters, "Y'all" has slightly different meanings around the area.
In this area (NW Arkansas, SW Missouri) Y'all is always plural. If you say "Y'all come over." to a single person they will be slightly confused as to who you mean.
In some other places it seems that it is both singular and plural. In some other places it is plural, but if you are talking to a single person and say "Y'all come over." you have just invited that person and His wife, children, in-laws, cousins and a close friend or two.
And there are places that are too far north to be the South, but too far south to be the North that "Y'all" becomes "You'uns"