- Spins objects
 
 - Sustained odd play 

 - Little or no eye contact 

 - Severe language deficits
 
 - Insistence on sameness 

 - Uneven gross/fine motor skills (may not kick a ball but can stack blocks)
 
 - Laughs, cries, or shows distress for no apparent reasons 

 - Noticeable physical over-activity or extreme under-activity 

 - Difficulty expressing needs; gestures or points instead of speaking 

 - Not responsive to verbal cues; acts as if deaf but tests in normal range
 
 - Echolalia (repeats words or phrases in place of normal responsive language) 

 - Inappropriate attachment to objects 

 - May not want cuddling or act cuddly 

 - Unresponsive to normal teaching methods 

 - Oversensitivity or under-sensitivity to pain 

 - Aloof manner; difficulty mixing with others