Individuals with ASD often have a great need for 'sameness' which can make them upset if objects in their environment or time schedules change. Individuals with ASD often have difficulty understanding the nonverbal aspect of language such as social cues, body language and vocal qualities (pitch, tone and volume). Others have echolalia, the repeating of words or phrases over and over. Many individuals with ASD do not develop effective spoken language and rely upon other methods of communicating such as pointing to pictures or using a tablet computer with special language applications. Individuals with ASD report that they want to have social relationships with others and build friendships.

They often appear to have difficulty understanding and expressing emotion, and may express attachment in a different manner. Individuals with ASD interact with others differently.

How can I tell if someone I know has autism? Even though there are strong and consistent commonalities, especially in social deficits, there is no single behavior that is always present in every individual with ASD and no behavior that would automatically exclude an individual from diagnosis of ASD. The manifestations of ASD can differ considerably across individuals. Autism spectrum disorders (ASD) can vary in severity of symptoms, age of onset, and the presence of various features such as language and intellectual ability.

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