Can something you wear indicate you are single or welcome to approach?

Fashion and how we dress can often project our personality or current mood. Thinking back, is there an outfit/accessory that you would wear as a signal that you are open to someone new coming up to talk to you? Or would you dress the same way regardless?
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+1 y
Conversely anything you wear to signal you don’t want someone new to talk to you?
Can something you wear indicate you are single or welcome to approach?
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