Hi Rain,
I'm the Omegle girl. Essentially you just write and make characters and plot stories with other people based in different canons. Ours started with being in the 'Harry Potter' world. Essentially, your account is the name of your character. You fill out profiles, do some face claims, and yeah just start plotting. If you need any help, feel free to PM me or any of the other admins here.
-Maddie