The smell in NYC is horrible, it's just the stuffloads of pollution!
The food is the key favorite. When you come, go get a hotdog and buy a water bottle. Also, have good shoes! I'd suggest going to Nintendo World, the M&M place, and some of the game stops. I liked going to the top of the empire state building and taking some pictures. There are multiple Italian restaurants that you may enjoy, too.
Don't go into Harlem 'nor Queens. You'll get yourself robbed. Stay in Manhattan, just do it. Central park is a great place to go. Maybe climb the rocks and have a picnic with your family. I would also like to suggest going on a taxi ride, most of the taxi riders are nice and it's a nice/little experience. There are all assortments of scammers and carriage riders who want to take your money, so just ignore them. Also, watch the loving horsepoo. Just, watch for it.
After your day is finished, make sure to look at the city at night before you go. It's absolutely beautiful.
