How do we adapt our grammar to communicate social detail? Do all working class people have a local dialect or are we free to use language in ways that transcend our place in the social hierarchy? Seeking to answer these questions, this pioneering book is the first to exclusively and extensively address the relationship between social meaning and grammatical variation. It demonstrates how we use grammar to communicate alignments and stances and to construct our social style or social identity. Based on an ethnographic study of high school girls in Northern England, it also uses the author's own experiences as a working-class student, to argue for change in how we conceive of grammar and how grammar is taught in schools. Lively and engaging real life examples from the study are included throughout, bringing to life new contributions to debates in variationist sociolinguistic and linguistic anthropology.