We had a blast! New Yorkers get a bad rep, but with the exception of one creepy guy whose creepiness had nothing to do with his New York residency, everyone we met was genuinely friendly and helpful. We walked all over town from 7am until 11pm and never once had any issues. We avoided the restaurant tourist traps and didn't get suckered into paying for crap we didn't really want. We learned (very quickly) to cross streets with the crowds, not the signs. I think we logged 19mi on foot in 48 hours there. No subway, no cabs, and 2 days of snow.
One thing no one warned us about was the mud puddles that are deeper and larger than they appear....but after a couple lessons the hard way, we figured that one out too.
The best thing we did in our time there was ask people where the good restaurants are, and let them know we weren't interested in the tourist crap. That was the best conversation starter. People love to brag about NYC, and most people like to talk about food. We met several interesting people this way. But again, everyone was really kind....some in a big hurry, but all nice.
I loved my time there. I will definitely a) go back in warmer weather; and b) defend NYC and her people to those who give it a bad rep!