Answer:
Discovering that he's been squinting his eyes more.
Explanation:
If you squint your eyes, then that must mean there has to be something wrong with your eyes. Therefore, you go to the eye doctor.
Yes, they can
For example is when we're handling child abuse case. Often time, a young children still haven't be able to communicate really well through written or verbal tools,
That's when simple images or object like dolls can be more effective communication tools