Autism warning sign:
By 2 to 3 months, your baby isn't making frequent eye contact.
By 3 months, he isn't smiling at you and the sound of your voice.
By 6 months, he doesn't laugh or make other joyful expressions.
Around 8 months, he isn't following your gaze when you look away from him
towards something else.
By 9 months, he hasn't begun to babble.
By 1 year, he isn't consistently turning to you when you call his name
By 1 year, he shows a general disregard for vocalizations (ie, lack of
respon