Encourage me to sing or hum bits of songs that I like listening to

Enhance my vocal efforts by amplifying them or by adding special effects

Encourage me to sing the short bursts of melody that you’ve been singing and playing for me, by using a microphone and amplifier
I may mix up bits from different songs, but that’s all part of the learning process and is a sign of my creativity in action!
Put the speaker close to me, so I can feel the vibrations as well as hear the sounds
Change the volume coming through the speaker, so I get used to hearing my voice being changed
If the equipment has the facility, try introducing different effects such as echo and reverberation
Use a looping app to build my short bursts of melody into longer sequences
Make recordings of what I do so that I can listen back to it later, and maybe join in the second time around!