My cat comes running when I shake the dry food box. Are there any nonverbal sounds that provoke the same response in humans?

The other day I unzipped the fleece I was wearing (which was actually my Quora Top-Writer's jacket) in the class I was teaching and the head of every boy in the room whipped around instinctively to look. It seems that the sound of removing clothing automatically creates a reaction in young males.

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David Stewart on Quora:

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from Quora http://ift.tt/29ouOHl