Insistence on sameness; resistance to change Difficulty in expressing needs; uses gestures or pointing instead of words Repeating words or phrases in place of normal, responsive language Laughing, crying, showing distress for reasons not apparent to others Prefers to be alone; aloof manner Tantrums Difficulty in mixing with others May not want to cuddle or be cuddled Little or no eye contact Unresponsive to normal teaching methods Sustained odd play Spins objects Inappropriate attachments to objects Apparent over-sensitivity or under-sensitivity to pai...