The sign of Gemini is typically represented by two twins, marking the concept of split personality. However, this doesn't necessarily mean that your friend is a two-faced, horrible person! It just indicates that her personality is diverse and in constant need of stimulation.
If your BFF is a Gemini, chances are you've already noticed her need to be on the move at all times. Gemini babies are easily bored and always looking for ways to broaden their knowledge. However, you might feel inclined to tip-toe around your Gemini friend if you find yourself in a deep discussion.
Geminis are emotionally fickle and can turn on a dime, hence they are deemed "split personalities." However, this just means you'll need to give your friend the benefit of the doubt sometimes and cater to her sensitivity.
To learn more about your Gemini BFF, consider speaking to a live psychic. Psychic readings can give you more insight into how to live with a Gemini, taking it one day at a time.