A Gemini

Over time, I've come to wonder whether the description of our zodiacs has any truth to it?

A Gemini is described as -

Smart and witty.
Outgoing, very chatty.
Lively, energetic.
Adaptable but needs to express themselves.
Argumentative and outspoken.
Likes change.
Versatile.
Busy, sometimes nervous and tense.
May seem superficial or inconsistent. (Hmmm..)
Beautiful physically and mentally.