This is the audio exerpt of nʲ spoken within a word. It may sound a little short or unclear, but that's exactly how it's in the real context. For more details, read the below explanation of pronunciation and listen example words that contain nʲ by pressing the word buttons.
1. Break the airflow by touching the point above the alveolar ridge with the tip of your tongue.
2. Direct the air through your noise instead of the mouth.
3. Relax your vocal cords.
4. Additionally raise the central part of your tongue to make the sound softer.