The First Time in NYC  
Once you get to the airport, you probably want to make to it to the city as quick as possible. Well, the taxi might not be your best option since the queue is endless. It's probably the longest line to get a taxi you'll see ever.
If you are on a budget you can live on pizza and hot dogs. They are cheap and there is one vendor in every corner. In fact, hot dogs are sold on street vendors conveniently located next to the city's landmarks. Plus, New York pizza and hot dogs are delicious! And the bagels - the best ever, and they make for a typical New York breakfast with cream cheese.
Since taxi drivers are always working and transport tons of people each day, they are pretty jaded, so don't even try to make small talk, they are not up for it. Just get in, give directions, pay the fare and get away as soon as possible.
Especially on high season, crowds of people flock the sidewalks and they are not moving out of the way when you walk past them - part of the NY attitude. If you have any issues with people being too close to you, then perhaps NYC is not the city for you, or you'll need to have a chamomile tea first thing in the morning.
You are going to pay a fortune for a hotel room that is the size of a closet. That is why young travellers opt for hostels which are pretty cool. There is even a pink hostel that is only for girls and they even have a barbecue on the 4th of July for free. Food and drinks for free in NYC, well that's pretty rare so it is fantastic. You won't get that in a hotel, they will charge you for everything you take from the minibar, add some tax to it and assault your credit card.
You'll probably be tempted to stare at the squirrels running around the streets for hours, and that is how New Yorkers will tell your a tourist, apart from the I love NYC t-shirts, the maps and the big old camera.
If you it's your first time in NYC, you definitely have to try a cronut which is a combination of croissants and doughnuts. Just imagine how many calories that has. Just a bomb for your stomach, but yet so worth it!
If you happen to be there during the fall, you'll be mesmerised by the colours of the leaves. The velvet trees will simply take your breath away. Then you can kick the leaves on the ground or lie down on your back over the leaves and make the shape of an angel.