One of the things I observed from my daughter is her ability to learn quickly. One day, she'd just surprised us doing something that we taught her. As her Mom, this ability of her makes me proud inside and out (*wink*).
The day after her birthday, her Dada set up her new toy in the living room. She was watching him doing it. Later, Dada taught her how to make the toy talk and sing. Evie was excited and having fun observing and watching the toy made noise. The next morning, there she was, doing it herself! It's so amazing to think that she's able to capture the whole concept of "cause and effect" on the new toy she got. Below is the video I made.