What does it mean when a person always wears red shoes?

It means there favorite color is red.

Well, always wears red shoes? Could be compulsive, however...

Scientists have finally made a breakthrough, tackling an important issue close to the hearts of many people: "Why do women wear red shoes?"

Dr Elaine Webster, a Sociologist from Otago University, New Zealand has spent the past six months asking why women wear red shoes. And, she has concluded that young women wear them for excitement, and out of a desire to be noticed; whilst most men associate red shoes with sex and sin.

Dr Webster, whose long term interest is "dress and identity" conducted the research after being impressed with the way that women spoke about their red shoes.

a very good example, some research reports have it that bright red shoes have an overpowering effect on men. At the side [sic] of them, they have it that some men may become befuddled and even confused. This leads them to stammering or perspiring.