Literary education exposes students to unpredictable critical moments in their encounters with a text. Drawing on Dewey's transactional realism and actor-network theory, this theoretical and conceptual study explores the performativity of things and materials as they shape reading and teaching bodies. This transactional performativity extends beyond the physical positioning of the body to the power relations enacted in text situations. The conceptual rationale is illustrated by a story about a reading chair in a detention home for detained young men--an environment where power issues come to a head. The story illustrates a theoretical discussion of what might be characterized as performing 'the critical' in reading and how potentialities for students' experiences are created in text situations by the different components involved. The purpose of the article is to explore the potentialities of performing critical aspects of reading to challenge, to transform, and to encourage resistance.