간단한 질문: far fewer 뒤의 생략과 be used to

“Sometimes the differences are very noticeable, especially when we visit a society which uses far more gestures and facial expressions than we are used to or far fewer.”
여기서 or 뒤에는 “uses far fewer gestures and facial expressions”가 생략된 건가요?
그리고 “we are used to”는 어떤 의미로 쓰인 표현인지 궁금합니다.