Holding the hand of your same-sex blind/disabled friend to guide them in the street is what you're actually doing, but people in the street give you recognition for being "out and proud".
Usage: "I got the
Lesbian Nod today for chasing a purse-snatcher, when actually I was running after a bus."
Putting a War and Peace dustjacket on your copy of
Twilight and reading it in public is not an action meriting a
lesbian nod - the confusion must be genuinely accidental.