People born under Gemini have double personality traits. Firstly they show happiness but later very somber and in the very next moment feel nervous. They have star of Mercury by which he shifts from personality trait to other like mercury which instills them adaptability, versatility, not continuous and have less patience. They are quarrelsome and are clever and always looking for mental stimulation. They do not take interest in a single topic for a long period of time and have fondness of commitment. This sign have close relations with Leo, Libra, Aquarius and Aries.