This is what makes everyone like you, Gemini...
Gemini is one of the happiest signs of the Zodiac. Like opposite sign Sagittarius, you just have a natural love of life that's difficult to diminish. When there's so much interesting stuff to do all around you, who has time to be depressed?
You try to stay as far away from negative or draining people, so they don't bring you down.
Your friends and co-workers love that you bring a little sunshine into their days. You're known for your cheerful disposition, and love to bounce around bringing joy. In fact, you make new acquaintances wherever you go!