How Can Nonverbal Communication Differences Indicate Autism in Toddlers?

PostedDecember 4, 2025

UpdatedDecember 4, 2025

ByMy Patient Advice

Author: Hannah Smith, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Autism and toddlers’ nonverbal communication are closely linked, and differences in how toddlers communicate nonverbally can often be an early indicator of autism spectrum disorder (ASD). While toddlers typically begin using gestures, eye contact, and facial expressions to communicate, children with autism may display differences in these nonverbal behaviours. These differences offer important behaviour cues that can help parents and healthcare professionals identify early signs of autism.

In autism toddlers, nonverbal communication differences can include limited or absent gestures, a lack of eye contact, or unusual facial expressions. These early signs are often subtle, but they can be the first clues that a child may be on the autism spectrum. Understanding how autism and toddlers’ nonverbal communication manifest is key to recognising potential developmental concerns early and ensuring timely intervention.

Common Nonverbal Communication Differences in Autism Toddlers

Below are early nonverbal behaviours that may indicate autism in toddlers.

Limited Gestures

Most toddlers use gestures like pointing or waving, but autism toddlers may use few or no gestures, which can make it more difficult for them to express needs or emotions. Early intervention through speech therapy can help improve the use of gestures and social communication skills.

Avoidance of Eye Contact

A common trait of autism toddlers is avoiding eye contact or having difficulty maintaining it during social interactions. This can make it harder for children to engage with others effectively. Therapies like Applied Behaviour Analysis (ABA) can help toddlers become more comfortable with eye contact and improve social engagement.

Unusual Facial Expressions

Children with autism may display facial expressions that don’t align with their emotional state, such as a neutral expression when upset or excited. Social skills training can support toddlers in using appropriate facial expressions to better convey their emotions.

Visit providers like Autism Detect for personal consultations to learn more about autism and toddlers’ nonverbal communication, and how early signs and behaviour cues can inform effective interventions.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Nonverbal Communication Differences.

Hannah Smith, MSc

Author

Hannah Smith is a clinical psychologist with a Master’s in Clinical Psychology and over three years of experience in behaviour therapy, special education, and inclusive practices. She specialises in Applied Behavior Analysis (ABA), Cognitive Behavioural Therapy (CBT), and inclusive education strategies. Hannah has worked extensively with children and adults with Autism Spectrum Disorder (ASD), ADHD, Down syndrome, and intellectual disabilities, delivering evidence-based interventions to support development, mental health, and well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.