Communication

Communication differences are a core part of autism and can affect how autistic people express themselves, understand others and navigate social situations. Communication is not only about speech — it can include gestures, behaviour, visuals, body language, writing, technology and many other forms of expression.

Communication support illustration

Understanding communication in autism

Autistic people may communicate in different ways. Some may use spoken language, some may be non-speaking, and others may have strong language skills but find the social side of communication difficult. The most important thing is to recognise and respect each person’s preferred way of communicating.

Communication Challenges

Communication difficulties can affect how autistic people express their needs, understand conversations, interpret social situations and access support. These challenges can vary widely from person to person.

Some autistic people may find it difficult to use or understand verbal communication, while others may speak fluently but struggle with tone, implied meaning, sarcasm, jokes or non-verbal cues.

Key Communication Differences

  • Speech and language delays: Some autistic people may develop speech later or need alternative ways to communicate.
  • Non-verbal communication: Body language, facial expressions, gestures and eye contact may be difficult to understand or use.
  • Social communication: Starting conversations, taking turns, staying on topic or understanding social rules may be challenging.
  • Literal interpretation: Idioms, metaphors, sarcasm and indirect language can be confusing.
  • Expressing needs and emotions: Some autistic people may struggle to explain discomfort, anxiety, pain or frustration.
  • Sensory sensitivities: Noise, lights, smells or busy environments can make communication harder.

Augmentative and Alternative Communication

Augmentative and Alternative Communication, often called AAC, can support people who have limited speech, no verbal speech, or who communicate more easily in other ways.

  • Communication boards
  • Picture Exchange Communication Systems, also known as PECS
  • Signing or gesture-based communication
  • Speech-generating devices
  • Written communication or typed responses
  • Visual choices and symbols

Visual Supports

Visual supports can make communication clearer and reduce anxiety. They can help autistic people understand what is happening, what is expected and what comes next.

  • Visual timetables and schedules
  • Now and next boards
  • Choice boards
  • Social stories
  • Flashcards and symbols
  • Written instructions or checklists

Helpful Communication Strategies

  • Use clear, simple and direct language.
  • Avoid idioms, sarcasm or unclear phrases where possible.
  • Give the person time to process information and respond.
  • Break instructions into smaller steps.
  • Check understanding without putting pressure on the person.
  • Respect the person’s preferred way of communicating.
  • Reduce background noise and sensory distractions.

Speech and Language Therapy

Speech and language therapists can support autistic people with communication development, understanding language, using AAC, social communication and finding practical strategies that work for the individual.

Support should always be person-centred and focused on helping the autistic person communicate in a way that is meaningful, comfortable and useful to them.

Behaviour as Communication

Behaviour can be a form of communication, especially when a person is unable to express what they need, feel or experience through words. Withdrawal, distress, repetitive behaviours or meltdowns may be signs that something is wrong or that the person is overwhelmed.

Rather than focusing only on the behaviour itself, it is important to look for the reason behind it. This may include sensory overload, pain, anxiety, confusion, frustration, unmet needs or difficulty understanding what is expected.

Communication should be understood, not forced

Every autistic person communicates differently. With the right support, visual tools, patience, clear language and respect for different communication styles, autistic people can be better understood and supported in everyday life.

Scroll to Top