9. Facebook is the lowest form of communication.
Social media is an acceptable way to introduce yourself to a potential paramour, but when it comes to real-life relationships, Marnie informs Hannah that Facebook is the lowest form of communication on the "totem of chat." It is followed by Gchat, then texting, then email, then phone. "Face to face is, of course, ideal," Marnie says. "But it's not of this time."