Saw a friend and her baby at weekend, havent seen them for about 6months.Baby still very much a baby, very small, but I think what made her seem 'babyish' was that she has a dummy in nearly all the time, and when she does speak it's mostly vowel sounds, not proper words. I'm sure it's the dummy - wouldn't dream of saying anything to my friend but I was a bit shocked. I've heard people say dummies impede speech but I've never had any experience of it before.