It’s called the “Secret Santa” or “Secret Sister” and it’s a gift exchange, usually amongst women. It works like this:Secret Sister social media recruitment post (Copyright 2020 by KPRC Click2Houston - All rights reserved.) Secret Sister social media post (Copyright 2020 by KPRC Click2Houston - All rights reserved.) • Report social media posts. Some pyramid schemes try to win your confidence by claiming they’re legal and endorsed by the government.