For DD6, I started realizing something when she learned all her letters, on her own, before 18 months. Then she started reading sight words.
In terms of things I thought were normal, I didn't realize how much more alert she was a baby, or things about how much she loved books and knew when to turn the page, etc. Also the types of questions she asks, her ability to understand complex answers, and even remembering in depth discussions we had when she was 2.
I accept that she's gifted, but she has not taken an IQ test so I don't know the level. I doubt she's pg and she does just fine in a public school with her own age cohorts. But heR OLSAT and MAP scores back up the belief that she's at the very least, very very high achieving.
