When someone speaks (or signs), they communicate more than just the content of their message; how they speak/sign reveals information about their social identities. Based on the language(s) someone uses, along with their word choice, pronunciation, and linguistic style, listeners make inferences about not only where the speaker is from, but about their personality, their trustworthiness, their politics, etc. Children show attention to the relation between language and social categories from a very young age. This course will trace that awareness from infancy to adulthood, discussing evidence from developmental psychology and psycholinguistic experiments, sociolinguistic case studies, and ethnographies * Prerequisite: One Lang fundamentals course, or ULEC 2160, Introduction to Psychology with a grade C or higher.