DD is in mainstream school. She is very bright and copes with school so the teachers say. However, outside of school there are things that make me wonder:
She doesn't like people to sing Happy birthday
doesn't like the sound of crisps being eaten
hates balloons being popped
doesn't like people clapping (in school she copes with clapping) 
she plays on her own at parties, dancing running around. wouldn't join in with party games.
she likes dvd's
she has talked to and played with her imaginary friends (sonic and friends) for over a year now.
Hits family members sometimes for no reason.
sometimes comes out with random words phrases that she made up.
otherwise she is quite like any other NT child.