All your twin assumptions are true. A double-sign (no wonder given that they are called Twins) that makes for you with unparalleled charisma.
The twins believe everything they hear and this new information affects the way they see things - so one day they are your best friend, the other the plotting enemy.
Since Gemini are very good at creating new friends, the good of things would be to know no compelling information about you. Smaller madness can turn you into the enemy of the people in the eyes of everyone, simply because the Gemini have a lot of knowledge and can spoil you easily.
Also, the Twins do not stop talking, have ferocious personalities, and make people try things that they may not feel comfortable with. Twins react immediately as they feel. They do not know how to pretend or camouflage their feelings.
