The characteristics of verbal communication, nonverbal communication and pragmatics are largely influenced by individual characteristics of a person as well as his language and culture. The evaluation of communication characteristics and stereotypical behaviour is important in diagnostics of numerous disorders, especially autism spectrum disorder. The aim of this study was to describe the characteristics of communication skills and to determine stereotypical behaviour and restricted interests in typically developing Croatian adolescents and to code them according to the fourth module of Autism Diagnostic Observation Schedule (ADOS-2). The sample consists of 30 adolescents matched by gender, aged between 16 and 18. The results showed that Croatian adolescents have typical verbal communication skills and show no stereotypical behaviour or restricted interests. However, atypical features were shown in nonverbal communication skills and pragmatics. In the area of nonverbal communication the biggest deviations from expected results were found in spontaneus use of gestures, while in the area of pragmatics most differences were shown in spontaneity of asking for information. The results of this study indicate the need to adjust diagnostic instruments according to the characteristics of a certain culture.