/ʤ/ | Raise the middle part of your tongue towards the hard palate, which is the bony ridge in the roof of your mouth, just behind your front teeth. At the same time, lower the back of your tongue towards the floor of your mouth. | Keep your lips relaxed and slightly open. | Keep your jaw slightly open and relaxed. | Keep your teeth slightly apart. | Build up some pressure behind your tongue by briefly stopping the airflow with the tip of your tongue against the hard palate. Then, release the air by quickly pulling your tongue back from the hard palate. | Start vibrating your vocal cords just as you release the burst of air. This produces a voiced sound. |