re: #412 makeitstop
Immersion. Just being exposed to a regional accent for any amount of time will cause it to sneak into your accent.
I just spent four days back in Philly, and I found bits of that accent sneaking back into what I thought was a solid NY accent.
NY accent is very different from what it was when I was growing up. Influx of new immigrant groups, particularly from Asia and Africa has changed the Noo Yawker accent.
It’s fascinating to say the least.