Another of those moments happened during dinner tonight. Eleanor has been playing with fake phones at school and here at home, but she decided to improvise. She held the half ear of corn she was eating up to her ear and said, "hi" over and over. If I recall correctly, the first glimmers of pretend play happened a bit later on for Oliver. Either that, or I wasn't terribly observant. (No need to answer that.)
I would say that I hope I never forget how unique my kids are, but there's no danger. They find ways to remind me every day.