Putting your hands over your ears can be socially acceptable depending on the context. Like the other day we had a fire drill at work, and as we all made our way to the front entrance, I saw one or two of my colleagues put their fingers in their ears, and as far as I know they are NTs. It felt socially acceptable, if you know what I mean. But noise only bother me if they're sudden.
But it's apparently socially unacceptable to put your fingers in your ears in public. So when an ambulance of a police car or fire engine is coming along with its blue lights flashing, I know that means the siren could come on any minute, which makes me so anxious. But I feel to embarrassed to put my fingers in my ears.
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Female