Used to be a New Yorker
Welcome, I won't add any more advice except socialize the pup early. While some shelties can be shy, I've found that early socialization gets them past this tendency. I don't know about dog parks in your area, but I've found they can be a great place for both socialization and burning up puppy energy.
Also, a great place to meet other dog lovers. That's how I ended up here. After meeting Sharon, Shadow and Sting at our local dog park. If you have your puppy by June 26 you should consider coming to the get together at Harkness Park here in Connecticut.
I started this as used to be a New Yorker. Where in NY are you? I grew up in Astoria Queens, end of the BMT line. But I've been here for over 40 years now. As my wife likes to say though, you can take the kid out of the city but you can't take the city out of the kid. Good luck with the smartest breed on the planet.
Doug, Maxine and Flora.