We extend research on social annotation in education by implementing a new annotation technique in the literature classroom. Over the course of one year, we invited students to socially annotate literary texts using emojis that reflected their affective responses to those texts. This approach was inspired by new functions of social annotation systems, discussions of affective pedagogy, and developments in literary theory. We used a coding scheme linked to the literary theory of Rita Felski to analyse students' annotations and theorise our results. Via surveys and interviews, we inquired into students' experiences of this annotation strategy. Students evaluated the experience positively, and our analysis suggests that this practice made contributions to their learning which align with Felski's account of literary "attachment". We conclude that annotating literature with emojis provides a concrete means of implementing affective pedagogy in literature education.