Those born between May 21 and June 20 are under the zodiac sign of Gemini, the twins. Gemini is associated with the element of Air. Personality traits include curiosity, communication and intelligence. Geminis are known to be adaptable and can take on whichever qualities are needed according to environmental changes. They are lighthearted and social, with a knack for seeing who a person is almost immediately. Their high intellect and curiosity, Geminis can at times have a short attention span. Those who learn to slow down and settle into favorable conditions are in the perfect place for success.