There's nothing more fun than playing peek a boo. And lately, Autumn has been getting into it. Really exploring what is going on. This website talks about what Autumn is learning in a scientific analysis. If that's too much information on hump day, then this is a more simple explanation.
Peek a boo not only makes Autumn giggle uncontrollably, it also helps her build trust in her parents. Babies worry about separation. She worries that when we drop her off at Day Care, we won't come back. The simple game of peek a boo we played this morning teaches her that we'll disappear for a second, but we'll come back.
But honestly, when I'm playing peek a boo, I'm not thinking scientifically, and I'm not helping her ease separation anxiety, I'm doing it to get her to giggle. Because there isn't a better sound.