I suspected pretty early on. For awhile i was just impressed by his smarts but then I noticed other signs. At less than 2 and a half he would sit patiently by the digital clock and wait for the minutes to go by so he could identify the numbers. He would do this for almost 30 minutes. He did this two or three times a day for a week. He learned to identify the letters both lower case and upper case in a matter of a few days just by doing a puzzle. We were using the puzzle to occupy him while he was sitting on the potty when we were potty training him but though he learned the ABCs inside and out he was still not potty trained! He was about 18 month or so. Family members as well as spouse recognize that he is very smart but not gifted. DH is gifted himself and so are other members of the family so they just see him as normal. I work as a teacher so I was more familiar with typical development. DS is now in a gifted program.
