Gemini is a Mutable Air sign, ruled by Mercury. As the third sign in the zodiac, Gemini is an energetic, charismatic, communicative, witty individual with a child-like fascination with the world and with new experiences. Famous and historical characters sharing this sign include John F. Kennedy, (May 29), Marilyn Monroe (June 1), and Judy Garland (June 10).

The Gemini personality stands out as the zodiac sign that knows something about just about everything, making them good conversationalists and interesting acquaintances. They are inquisitive and quick to digest new information and ideas. Intelligent and logical, but with a lot of nervous energy, Gemini likes to keep busy and expand their horizons whenever opportunities arise, often multitasking between several interests. However, as the sign of the Twins, there is a dual aspect to the Gemini personality, making it difficult for these individuals to stick with any one thing in order to master it, and often making it difficult for bystanders to figure out which side their Gemini friend is really on. Gemini has more than one personality, which can change in a flash, and those near to them would do well to learn them both. On and off, up and down, back and forth, black and white, day and night, ying and yang - this is the essence of the Gemini personality.

For those with a Gemini child, get ready for a ride! These kids can be sweet, cooperative little angles one moment and infuriating monsters the next. Gemini children are very verbal and soak information in like sponges. They therefore tend to master the art of communication quite early, often displaying knowledge beyond their years. This is a high-strung child with a lot of pent-up energy, so don't be surprised if your 6 year old Gemini claims to have "tension headaches" or other physical complaints beyond his years. The Gemini child will not particularly like the rigors of school, but it is likely that he will know to turn on the charm to bluff his way through parts of it. Though he has the intellect to excel in school, it's just not in little Gemini to follow things through to completion, so he will rarely be at the top of his class. Giving him a rich environment at home will help offset this, so be sure to introduce him to nature, sports, music, and reading early on, and also provide stimulation via computers and video games to help broaden his exploratory nature and hold his interest. Gemini kids seem to have a conflict between emotions and intellect, and this can manifest in a variety of ways, often in strange eating habits. Your Gemini might love only red jelly beans or want peanut butter on bread with no jelly and nothing to drink. If you ask about this type of thing, he will blithely tell you that the red ones give him strength or that he has exceptional salivary glands - in his own mind, he is perfectly justified in his choices regardless of how absurd they seem to everyone else. Your best bet is to keep the multi-vitamins handy for these little ones! With regard to other family members, Gemini will entertain and delight and generally get along fine with everyone, unless someone comes along that takes away his limelight, such as a younger sibling. In this case, your little Gemini may turn into a tormenter of this sibling for years to come, and this can be very difficult to control.

Because of his superior communication skills and innate charm, Gemini usually does well at work, with others often seeking them out for advice and new ideas. Conversely, the Gemini worker will not hesitate to seek others out for advice and ideas, always striving to stay on top of the information chain. When interested, Gemini can accomplish more in a day than other signs can accomplish in a week. When disinterested, however, the Gemini worker will procrastinate and eventually move on to more interesting pursuits. No surprise then, that Gemini tends to change jobs and even careers several times during his lifetime. The Gemini's office will have lots of communication devices including computer, phone, Blackberry, cell, and a rolodex full of names, and he will constantly be networking and seeking out new connections. These same traits will also cause the Gemini to tend toward gossip, so if you want to hear the dirt on others, seek out your Gemini co-worker. Gemini can function well in almost any job capacity that he finds interesting, especially those that require lots of communication and interaction with others. With Gemini in a boss or leadership position, however, watch for a strong secretary or assistant that follows behind picking up pieces and finishing undone projects.

If you have found a romantic partner in a Gemini, you have a young at heart lover who wants to try new things and is always looking for a new adventure. The Gemini partner will need a quick wit, and the capacity to change directions on a moment's notice. Gemini will frequently test their partners for loyalty and commitment, so try to keep jealousy and anger at bay, because although the challenge at hand may look like it is external, it is often a situation generated by Gemini himself as a test of your commitment. Additionally, while Gemini is often animated and fun, within a short time this can change to brooding and isolative, so learning when to back off completely is important in this relationship. If Gemini becomes bored within the relationship, he will almost certainly move on, often with no concept of the devastation he is causing, so keeping it fresh and alive over the long term is crucial to holding on to a romantic relationship with a Gemini.

The best matches for Gemini for sure are Gemini, Libra, and Aquarius, but Aries, Cancer, Taurus, and Leo might also work for some individuals. It will likely be tough going for Virgo and Pisces, which are the least compatible with Gemini.

Gemini in any relationship is smart, witty, fast, and fun. They are the life of the party and have a lot of acquaintances. They seek out others who are smart and adventuresome, and will become quickly bored with those who are homebodies or content with the status quo. Gemini wants to see the world, experience everything, and literally "learn something new every day." He will be a fun and fascinating companion, but some may see him as superficial and "two faced" because his goal is to charm everyone all of the time. On good days, he will be charming and gracious, but on bad days he can be moody and even cruel. Remember, with Gemini, the by-word is "changeable," so learn to expect anything!