Unusual responses to sensory stimuli – for example, the child may be overly sensitive to loud noises or certain textures.

Difficulties engaging socially – for example, the child might avoid eye contact or struggle with interacting in groups.

Problems with speech or non-verbal cues – for example, the child may have delayed speech or repeat phrases often.

Exaggerated emotional responses – for example, the child may become upset by minor changes or unexpected events.

Repetitive actions or routines – for example, the child might engage in hand-flapping, rocking, or insist on strict routines.