Facepressing
You use Facebook to pretend you're someone you're not, hoping people will think you're awesome instead of realizing you're just plain weird.
I posted a status saying I was going to a concert with my friends, but I was actually at home watching TV.
I commented on a post like I was in on the joke, but I had no idea what was going on.
I took a quiz that said I was a 'chill sunset' and posted it like it was the most important thing ever.