As a teacher of young children, I often hear myself say, "Follow directions the first time." In truth, it's a fairly futile attempt on my part to convey my expectation that students are to respond to my direction now. In reality, some completely ignore me, some hear but don't listen, some don't hear and therefore miss the instruction, and the rest have an agenda unrelated to mine.
Eureka! Could it be as simple as using orange light sticks? I'll get back to you on that!