Jimmy Kimmel asks audience to guess whether random people are wearing shirts or not

Whether or not it's okay to stroll down a busy high street shirtless has long been an issue of contention.
Is it perfectly fine on a hot day, or is it just always a bit too much?
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Well the video above doesn't even begin to answer that question, but it does get to the bottom of another one: can people tell whether or not someone is wearing a shirt just by looking at their face?
The answer, it appears, is a resoundi