Now, I know that normal is a pretty loose thing - but so much of my family on both sides is Aspie that I can't sort out what passes for normal in my family vs what passes for normal in the real world. DD is 2 (almost 3) and she's very intelligent, and has a very academic bias. She doesn't really have any interest in other kids, which I think of as normal at 2. She kind of plays beside them and will point out other children as existing, but has no idea what the names of any of the other children (or adults) at daycare are. The more concerning behavior is a crowd issue though. When she's been around a lot of people (daycare days) and is out in a non-crowded but public location or is in a crowded location (costco on a weekend, a busy grocery store) without prior crowd exposure that day she kind of goes nuts. She'll start licking me, or kicking me, or head butting. Or she'll start yelling.. things. Not obscenities, the last few of times it happened she was yelling "The... WATER... FOUNTAIN.. is... BLOCKEDOFF!" And she'll yell loudly enough to make my ears ring. In a stroller she'll strain against the If we spin her in circles it helps. If we hold her upside down and bounce her it helps. However, those only work if we recognize that she's on the edge and try before the fit and they're getting exhausting as she gets larger. Otherwise she's just done for the day.. you take her home and she runs in (literal) circles, crawls on the floor, and strews toys everywhere. It was kind of slow change in behaviour (over maybe a month) but she's still very well behaved when there isn't a crowd. I don't know if this is her figuring out how to push my buttons or if we should consider having her evaluated. DH refuses to go into the same situations that set her off because they make him miserable and I've occasionally had claustrophobic attacks (I'm not normally claustrophobic) in similar situations. So this comes up maybe once a week when we've planned badly. I shudder to think how bad it could be at WDW in May. At least the crowds should be fairly light.