Emily Witkop, who works for Southwest Airlines, explained how it is easy to tell their co-workers without the passenger catching on.
She previously told Yahoo: “For a few years there was a ‘hot coffee’ code among flight attendants.
“You would say, ‘I’ve got hot coffee in 3B!’
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“Which meant there was an extremely attractive passenger in that particular seat who the other flight attendants should check out.”
It isn’t the only way crew tell each other if they fancy someone onboard.
Another flight attendant revealed a “cheerio” game they played when they left the plane after it landed.
The crew member, who goes by the name LTN330 on the Cabin Crew forum said: “There’s the cheerio game you can play when passengers disembark.
“When you’re standing there going ‘buh-bye, thank you, take care’ etc when you see someone you fancy, you say ‘cheerio’.”