personally...
a FaceBooker
facebook user
a janmarie alicea find her on facebook
doctor
u can call them a user or liar i guess
A person who uses a lot of words can be referred to as verbose or loquacious.
puppet master
A person who uses sophisticated words is often called eloquent or articulate, with a strong command of language and vocabulary.
you call it- new facebook user
sycophant
Builder
Facebook uses the HTTP Protocol
The little square one sees when talking on Facebook is en emoticon or smiley that can't be displayed. This is usually the cause when a person uses to text from a cell phone on Facebook.