So what is the child doing motorically at 1 year to 1 1/2 years during the period of Identification Language?
For the next six months (1 to 1 /1/2 years), the words will be used after their referent appears. Daddy may come into the room and baby says "dada." A bottle is shown to the baby and the baby say, "baba." This is called Identification Language. The second six months will bring a subtle but significant change.
Motorically, like the wild boy of Avyron, the baby is running an all fours with great efficiency.
He/she can stand alone now and may even take that first ONE step alone. Outside of that he/she will walk haltingly when held by the hand.