Gender is performative, not expressive

Butler's foundational move is to invert the common-sense picture in which an inner gendered identity gets expressed outwardly through clothes, gait, and speech. She argues instead that there is no inner identity preceding the acts; the acts themselves, repeated over a lifetime, are what create the appearance of an inner self. A person is not a woman who then acts feminine — the accumulated acts of femininity are what produce the social fact of being read as a woman. This is not the same as saying gender is a costume someone consciously puts on each morning by choice, since the repetition is compelled by social norms enforced from childhood onward, and deviation carries real social costs. But it does mean the deep-seated feeling of gender as an authentic core is itself an effect of successful repetition rather than evidence of an essence underneath. Takeaway: identity that feels most natural may simply be the performance rehearsed most consistently.