Leo has been watching Mom and Dad sign and learning signing since around 6 or 7 months old. So, I don't really know when his first sign emerged. All of sudden there was an explosion of different hand gestures and sounds. But it was after he completed one year old that he really tried to communicate back to us. If you sign to him, I think that he probably understand more than we know, but for now he prefers to use just a few. Repetition was a key for success.
The words he can sign back to you at 15 months old are: AIRPLANE (we think it was the first one), MORE, FLOWER, CAR, CAT, FOOD, BIRD and HAT.
The words we think he understands when you sign to him are: All the above plus PLEASE, THANK YOU, SORRY, DOG, HORSE, WATER, MILK, JUICE, BEAR, BUBBLE, some of the ABCs, some of numbers, ROCK, SHOES, SOCK, TRAIN, BATH, BLOCK, CUP, BALL, BOOK, GRANDMA, GRANDPA, MOM, DAD, PLAY, STOP, GO, NO, YES, etc.
The words he can sign back to you at 15 months old are: AIRPLANE (we think it was the first one), MORE, FLOWER, CAR, CAT, FOOD, BIRD and HAT.
The words we think he understands when you sign to him are: All the above plus PLEASE, THANK YOU, SORRY, DOG, HORSE, WATER, MILK, JUICE, BEAR, BUBBLE, some of the ABCs, some of numbers, ROCK, SHOES, SOCK, TRAIN, BATH, BLOCK, CUP, BALL, BOOK, GRANDMA, GRANDPA, MOM, DAD, PLAY, STOP, GO, NO, YES, etc.
