Fewer females than males are diagnosed with autism spectrum disorder (ASD), and fewer females have been enrolled in treatment studies. As a result, it is not clear if commonly used interventions are equally effective for females. This study will examine the feasibility and preliminary efficacy of Social Engagement Therapy (SET) in a sample of minimally verbal girls with ASD. SET is a brief, structured behavioral intervention, based on applied behavior analysis, and is designed to increase social communication and social approach in minimally- verbal children with ASD. The study will also explore the use of a new wearable technology worn by the therapist to examine orientation to social stimuli.