"World Hijab Day calls on non-Muslim women to try out life under the traditional head scarf."

BBC reports:

[Jess Rhodes, 21, a student from Norwich in the UK] was concerned about the reaction, but after eight days of wearing the headscarf she has actually been surprised by how positive it has been.

"I can't explain it really but people have been really very helpful, especially in shops," she says.... I will wear it from time to time...  I'm saying to the world, my beauty is for my family and my partner. Any woman can wear this."

So let's assume you are a woman with no religious basis whatsoever for wearing a headscarf, but you wear one because of World Hijab Day, and you find yourself receiving more respect and more deference from strangers. Rhodes says she got more help in shops, but when she talks about wearing it in the future, she doesn't refer to an interest in getting better treatment from others, but in expressing something about excluding them from her beauty. Of course, there are all sorts of clothing items that can be worn to exclude others from your beauty. Why — if expression is key —adopt an item of clothing that is read as an expression of belief in a religion that isn't yours?