How do I reduce the squeaking of my faux leather sofa?

I’ve got a (faux) leather sofa (not sure how to tell difference). Sitting on it or moving around makes the leather rub together and squeak a LOT. It wouldn’t bother me but I live in an upstairs flat so I get paranoid if it’s late at night and I move on the sofa it’s “CREEESQUEEEEEEEUUUURRRR”....