Sorry, I'm in Ohio. Try this, get copy of Skagit Master or the Rio spey casting video. Watch, go to river or lawn and practice, watch again, fine tune, repeat until proficent. This is how I taught myself to spey cast. You'll get good enough to get a fly out and catch fish with one or two times out practicing. Like anything else, it will take a lot longer for you to get good.
I would be interested in learning as well. I live right near the Wayne/Lackawanna county border and figured someone in Scranton or the Poconos might have this skill they are willing to share.