Ruling Planet: Mercury
Talk talk talk talk! Communication! Technology! Short trips! Gossip! Yay Gemini's!! I have never met a Gemini who didn't love conversation. Even shy ones will talk endlessly once they get to know you and are comfortable. They LOVE communicating Ideas more than LIFE, and to them conversation is life. Without it they wither and die.
The idea of Gemini’s having an evil twin has given them a bad reputation, and while some do have a Jeckyl and Hyde personality, due to hard angles crankier planets make to their sun,(super in depth math stuff that has to do with your natal chart,) the dual nature of Gemini’s is usually happy/sad. Generally upbeat personalities, when they do fall into a down mood it doesn’t seem like them at all, and that's what seems different to us about them.
I do not have planets in Gemini, but I have gemini on the cusp of the 5th and 6th houses, which makes me need to combine communication and work and art and fun into a business. Hey, like writing art books and blogs! For me, art is not just personal, but the vehicle I use to express my ideas to others. I would rather tell someone how I feel about them in a painting then a conversation. Speaking words often fails me, but I can do it through art.
5th house represents: creativity, pleasure, children, and culture. It’s the stuff we do for fun. Having Gemini here means I enjoy intellectual pursuits and enjoy discussing intellectual pursuits with other people. (Especially when we are drinking coffee.) I am a flirt, I treat children like equals, and creativity comes easily to me.
6th house represents: work, service, health. I am versatile and organized with my work. I treat co-workers like brothers and sisters. I am psychosomatic with illness.
In my painting I have represented two Gemini Twins. While one is straightforward in her gaze and wants to interact with us, the other figure has pulled away into her own world. This is the dilemma I feel happens with Geminis, as they struggle with balancing so much people/info interaction with their inner quiet.