Uk&Irish people! Subtly let people know you're lesbian?

[Elaine]

So I've recently heard of this purple string thing, thats less obvious than rainbow but lets other lesbians know you're gay and single? Is that purely an american thing or is it sort of known here?

I think its for all girls looking for other girls,and if you wear it on the left you're taken and on the right you're single

[Josh]

Woah that would be so cool, and would make gay life so much easier. Imagine being in a club and checking out a hot guy, straigh or gay? oh look his wrist! never heard of it, but it would be awsome