How to Know What a Non-Speaking Child Wants
The guessing is exhausting, and it never fully stops. Is she hungry, tired, overwhelmed, in pain, bored? Without words to ask directly, every moment of distress or reaching becomes a small puzzle. There is a framework that makes the puzzle more solvable, and it starts with treating behavior itself as the message.
To know what a non-speaking child wants, start by treating behavior as communication rather than something separate from it. A foundational approach called functional communication training identifies what a behavior is actually achieving, escape from a demand, access to an item, attention, or sensory input, and uses that pattern to respond accurately and eventually teach a clearer alternative.
Behavior Is Communication
A foundational study by Carr and Durand, published in the Journal of Applied Behavior Analysis, established that many behaviors labeled as problems actually serve a specific communicative function, escaping an unwanted task, gaining access to a desired item, seeking attention, or seeking sensory input. Their research showed that teaching a child a clearer, more direct way to communicate the same underlying need meaningfully reduced the harder-to-read behavior, because the need itself was now being met more efficiently.
This reframing matters enormously for a non-speaking child. Instead of a behavior being something to simply manage or stop, it becomes information, a message about a real, identifiable want or need.
Reading the Pattern
Two questions usually reveal what a behavior is communicating: what happened right before it started, and what happens right after, that changes it.
Escape pattern
Behavior increases right when a demand is placed, and decreases the moment the demand is removed.
Access pattern
Behavior increases near a desired item, and decreases once the item is obtained.
Attention pattern
Behavior increases when attention shifts away, and decreases once attention returns.
Sensory pattern
Behavior occurs consistently regardless of who is present or what is happening around it.
Offering Choices to Reduce Guesswork
Once a general pattern is visible, offering concrete, visible choices reduces the remaining uncertainty. Two physical items held up, waiting for any response, a glance, a reach, a lean, gives your child a lower-effort way to confirm or correct your guess than an open-ended question ever could.
Our guide on teaching yes and no builds directly on this same principle, and pairs well with the choice-offering approach here.
Frequently Asked Questions
How do I figure out what my non-speaking child wants?
Start by treating behavior itself as communication rather than something separate from it. A foundational study on functional communication training found that behaviors often labeled as problems, crying, reaching, even some distress responses, frequently serve a real communicative purpose, and identifying that purpose is the first step to responding accurately.
What is functional communication training?
It is an approach built on the idea that behavior communicates a specific need, escape from a demand, access to an item, attention, or sensory input, and that teaching a clearer, more direct way to express that same need reduces reliance on harder-to-read behavior.
My child cries but I can't tell why, where do I start?
Look at what happened immediately before the crying started, a demand was placed, a preferred item was removed, a transition occurred, and what happens immediately after, does the crying stop once a specific thing changes. This pattern, called the antecedent and consequence, usually points toward the underlying want or need.
How do I offer choices to a child who can't tell me what they want?
Offer two physical, visible options at a time rather than asking an open question, and watch closely for any response, a glance, a reach, a lean toward one option. Consistently honoring whatever response appears builds both your ability to read it and your child's confidence that the choice mattered.
Should I always give my child what they seem to want?
Not always, but always acknowledge the communication attempt even when the answer is no. Showing that you see what they want, and that right now the answer is no, honors the communication itself, separate from whether the specific request can be granted.
How can I tell the difference between wanting an item and wanting to escape a task?
Notice the timing, behavior that increases right when a demand is placed, and decreases the moment the demand is removed, usually points toward escape rather than access to something. Behavior that increases near a desired item and decreases once it is obtained usually points toward access.
What if I misread what my child wants?
Misreads happen and are a normal part of the process, not a failure. Responding, noticing it did not resolve the behavior, and adjusting your guess is how the pattern gets clearer over time, both for you and for your child's confidence that attempts to communicate get taken seriously.
Can this approach work alongside AAC or picture cards?
Yes, and it works especially well alongside them. Reading the pattern behind a behavior often reveals exactly which item or option to include on a picture card set or AAC device, making the communication tool more relevant to what your child actually wants to express.
Not sure how to read your child's communication attempts?
Our free tool helps you build a support profile in a few minutes, a useful starting point before choosing an approach.
Free Sensory Profile & Support Tool for Parents →Sources: DSM-5, WHO ICD-11, Carr & Durand (1985), Journal of Applied Behavior Analysis, 18(2), 111-126, Action for Autism India.