I suspect toddlers have loved playing Peekaboo since the beginning of time. Every 2 year old I've ever met thinks it is the funniest. It never gets old, for me or them.
Grier was hiding behind the curtains this morning while the sun was streaming through the windows. Brodie joined in pretending he couldn't see her so she could pop out over and over again. Luckily because she did it so many times I was able to grab my camera and catch a simple, special moment.