Table 1.

Adults' and children's devices for establishing visual perception as a relevant resource.

	9–14 months	15–17 months	18–22 months	23–24 months
Adult	Initiates job by setting up a relevance for visual coordination. Devices: Breathing in or interjection What question or summons		Higher expectation: Verbal cues are omitted
Child	Responds by coordinating visual attention	Initiates job by setting up a relevance for visual coordination. Devices: Breathing in Interjections		Initiates job by setting up a relevance for visual coordination. Devices: What questions and summons