What is the one thing a Gemini could do that indicates all is not as it should be? That's right - clam up!
You're usually so chatty that any extended period of silence should be a loud and clear warning to a partner that something is amiss.
You are changeable and can be prone to moodiness, but don't leave your mate guessing which Twin is in the room today. Speak up!
And if your Gemini partner suddenly goes all incognito and distant on you, don't leave it alone. Talk and get to the bottom of the problem.