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Just a couple of examples of how baby sign language helps - from my own 2 children:
When Harry was 7 months old and I was late with his milk one morning, he gave a cry from his room and then made the 'milk' baby sign very clearly to me!
When Lucy was a bit older, at 10 months, she got very excited one day when we were shopping. A flock of birds had flown down, around her pushchair. Lucy was so excited that she made the baby sign for 'bird' all around her, whilst also saying 'b!' 'b!' 'b!'
On both occasions the children baby signed something that was important to them. They were delighted to be able to express themselves. I was equally delighted to have a 'window' to their minds - not just guessing but really knowing what they were thinking about.
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