I was discussing with a friend how certain outfits work differently for different people.

I find for instance that wearing a white blouse seems to make people smile (and no, I never wear it see through) and they seem friendlier. I tried this on different days and the reaction was the same. Not everyone but more than usual.

My husband didn’t believe me but I sent him shopping in a store once with a very nice suit (not a boring one) and he comfirmed that both guys and women kept stopping to assist him and some went out of their way to help. (of course not guaranteed to work if you an a-hole in a suit)
What colors or outfits have you worn that seem to elicet unusual reactions of kindness, rudeness, or indifference from the public?