facebook boosting
Like and comment on your friend's posts so they do the same to you. It's like a dirty trade. You both pretend to be famous.
You like 50 of their posts. They like 50 of yours. Both of you are lying about being cool.
They comment 'Great post!' on your stuff. You reply 'Thanks!' even though you think it's stupid.
You boost each other just so your posts show up on the top of the app. It's like a popularity contest for losers.