While waiting, create singing conversations. Instead of talking back-and-forth, quietly sing what you want to say to each other. How does your child respond? Then try whispering. Keep going back and forth and make it a game.
See what your child is learning
Singing their words and whispering them gives your child practice with controlling their behavior to play the game. This self-control is an important foundation for learning and being able to do what it takes to meet goals.