New York is where I am from and where its bustling all the time with countless ways to enjoy it.
A great way to experience some time there is to pick an area and take your time browsing through.
One great location to visit is Times Square. You'll find mega chain restaurants for dining, tons of shopping options that run the gamut of street vendors to souvenir shops to clothing and accessory stores, and so much more topped off with a huge city backdrop for sightseeing and good photo ops.
In between all the action, add in some still time in the park. You can start or end it in Bryant Park which is walking distance from Times Square. It is the perfect way to enjoy some relaxing moments while in the big city which has pretty scenery, good people watching and resting in between it all.