If you cant think of anything to write right now, just write about nonsense on here.
Basically, just make up some characters. But please don't make it like a story. All you do is make up some random people. As many as you want. Create them an imaginary profile. You have to state who they're friends with in it (unless you create the first character, you also don't have to really be friends). I'm going to include the best ones in a story called 'People of Nonsense'.