Babies generally start talking when they are about a year old. These words may not really be words but may sound something similar to it. In some cases the words may be quiet clear. For example, 'dada.'
I have two nephews and one niece. Back when they were toddlers, one nephew talked when he was 2, the niece when she was 2, and another when he was 1 year 10 months.
There's a difference between babbling and one-word speak though. When they can finally iterate a word in their native tongue, they will enter the talking stage. And let me tell you, once you praise them enough, you will never get the little guys to stop >_>
When babies put their hands on your neck they're doing that because they're feeling the vocal cords vibrate, and then they hear people talking and eventually they get it. It normally takes like 2-3 years.
I was quite the nerd when I was little. 8D I said my first word REAL word at 7 months. It was "cereal" By the time I was walking, I was speaking actual sentences.
The first fake word, was food. I always said it "foo" xD I never really crawled either. I was walking at 8 1/2 months, and running at 10 months.
I spoke my first coherent words when I was 4 months old (I said, apparently very clearly, "hi dad" to my dad), and I think the range is anywhere from 4 months to like a bit over a year normally. Obviously there will be outliers on either side.
probably around one to two. But there's only one problem.
Problem: Parents spend nearly three years of a childs life teaching them to talk and walk and for the next 15 years spend the rest of the time telling them to sit down and shut up. So what's the point in teaching them?