Manual babbling is when babies use their hands and fingers to make different movements and gestures, much like how they babble with their mouths to make different sounds.
Just like how babies experiment with different sounds to learn how to speak, they also experiment with different hand movements to learn how to use their hands and fingers. For example, they may wave their hands back and forth, open and close their fists, or reach out and grab objects.
Through this manual babbling, babies develop their fine motor skills and hand-eye coordination. It's an important part of their overall development and can help prepare them for tasks like writing, drawing, and using tools later on in life.
So, when you see a baby making funny hand motions and gestures, they're not just playing around - they're actually learning and developing important skills!