Gemini (May 21 - June 21): Gemini is the third sign of the zodiac, and those born under this sign will be quick to tell you all about it. That's because they love to talk! It's not just idle chatter with these folks, either. The driving force behind a Gemini's conversation is their mind. The Gemini-born are intellectually inclined, forever probing people and places in search of information. The great strength of the Gemini-born is in their ability to communicate effectively and to think clearly. Adventures of the mind are what the Twins are all about. They also love to share themselves with their friends, and they make for charming companions.