My twin daughters (Tabitha and Blakley) are just over a year old.
Blakley is bouncy. When she was just a few weeks old, I could tell she was intelligent. Now she keeps pulling herself from her knees on the floor to standing by using any solid object to hold onto. (The solid objects are like a table and me when I'm sitting.) She can't walk yet but...
Now about Blakley. Thing morning, she kept wanting me to help her eat MY cereal. (sigh.) So there I was putting a spoon of milk + cereal in my mouth then a smaller serving to my daughter hinting with her open mouth...
I'm sure my wife didn't include that in the list one of the warnings in bringing up a child.
Tabitha, however, has her own milk given by a tube going down one of her nostrils. Not surprisingly, she doesn't like it and regularly pulls it out. As a result, nurses keep coming over to our house.
She has a special chair used at the nursery the twins go to. Yes it's expensive sending the girls to a nursery. They have a special supportive chair for Tabitha. (Similar to this one.) At home we don't. C'est la vie.