This is the audio exerpt of mʲ 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 mʲ by pressing the word buttons.
1. Break the airflow by closing your lips.
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.