Autism/ˈɔːtɪzəm/ Definition 1 of 2Pro Tip 1/3Communication Barriers Autism can lead to unique communication styles or challenges in social settings. Children with autism might not make eye contact when speaking. Pro Tip 2/3Behavioral Patterns Autism might involve repetitive behaviors or intense interests in specific subjects. He has autism and likes to line up his toys in a specific order. Pro Tip 3/3Spectrum Variance Autism is a spectrum, meaning symptoms can range from mild to severe. She has a mild form of autism but still excels in school.