Encourage me to make sounds in response to the sounds you make

Help me to respond by catching my attention and giving me lots of time to think what to do

Use your voice to make sounds that I enjoy,and let me watch close up and, perhaps, feel what your lips and mouth are doing
Try physically sharing small soundmakers or instruments with me, so that I can feel them as you make a sound, and then keep quite still and see if I do the same in response
After a while, try using separate instruments, for example, clusters of bells attached to my wrists or ankles and to yours
Place a balloon in between us and share the sounds made with voices and, maybe, fingers
Remember, I may need a long time to react, I may not respond consistently, and I’m likely to need a lot of repetition
Make funny noises down a cardboard tube held to my ear, and then swap over