Framed in sociocultural and post/decolonial perspectives, this multidisciplinary multi-site study focuses issues related to globalization and learning in the global North and South. Based upon analysis of different data sets from three ethnographic projects, this paper focuses individuals and institutions accounting of language, learning and identity on the one hand, and the performance of languaging, learning and identity-positioning on the other. Furthermore, by using different representational techniques, the paper revisits dimensions of learning language and identity-positions inside and outside institutional settings. Language and identity get accounted for as intrinsic performatory hybrid dimensions of individuals-in-concert-with-tools from bi/multilingual perspectives.