General behavior :
Gemini (the twins) is a very complex and confusing sign. They are the first human sign in the sun signs. They show a true human relation, and how contradictory it can be. To some people they can seem like a wonderful friend, while to others they will seem two-faced and sneaky. They act like a child for most of their life. That includes both the good and bad characteristics of children. They are adaptable. They are versatile in nature. They are highly intellectual.

They are happy and energetic when things go right for them. They are youthful and lively as well. However, when things go wrong, they can be passive-aggressive and very mean. They find decisions hard to make, since they can never stay with the one that you originally choose. They tend to fight loosing battles for something that you call a "moral" cause (even though they know it isn't). One quality (they decide whether it's good or bad) they have is the ability to lie and appear that they are telling the complete truth. They prefer to use someone else's solution to a problem than thinking of their own. Many of Gemini's poorer traits are due to their lack of self-esteem. It is very tough to get their attention. They will be thinking about many things at a time and they can't concentrate on any particular thing at one time. They may be praising somebody but at the same time they will be thinking against them. They are nervous and tensed about a lot of things usually are worried about small things. But the most intelligent people on the earth are Geminians.

Romantic behavior:
The uncertainty of the Gemini temperament does not favor lasting affairs and is the cause of much friction in their love life. They are little swayed by passion, and the only way to retain their fidelity is to meet their varying moods constantly in a fair and unsuspecting manner. They prefer light relationships to more lasting ones.