I'm fond of nuances of the English language. Could please comment some of those regional variations?
Endlessly! But there isn't enough time for a subject as large as that. Or did you mean regional variations on "lay the table"? If so I was simply saying that they might exist; I don't know any myself.
But since you're interested in nuances: when making a pot of tea, in the South of England one would say "the tea's brewing" while in the North (and maybe in other places) you might occasionally hear "the tea's mashing".
And regional accents can make it as difficult for one English person to understand another as it is for people from other countries. For example, whereas I would say "going home", some people from the North West of England (Workington, maybe) would say it more like "gang yam".