Sharing is a key function of social media (Yus, 2022). This study aims to analyse the sharing practices of five Spanish WhatsApp groups from a pragmatic, ethnographic and qualitative perspective. The groups consist of family members, friends and three groups formed by work colleagues. Specifically, this study aims to respond three research questions: What do group members share? To what extent is the act of sharing explicitly and meta-pragmatically talked about and responded to? And to what extent do recipients respond to sharing also in a meta-pragmatically explicit way? Results show that both family and friends follow similar patterns, where interactants share good news and entertainment to boost rapport. Interestingly, this pattern is replicated by working groups, whose ultimate aim is rather different. This reveals that, independently of why the WhatsApp group was created, participants prefer boosting rapport by means of mutual enjoyment (Yus, 2023) rather than using these groups exclusively for their instrumental purpose, possibly because of Spanish culture's orientation to positive politeness (Iglesias Recuero, 2017). However, the meta-pragmatics of both types of groups seems to differ, with more explicit references performed in the working groups, probably due to the need to explicitly acknowledge that sharing might not be the groups' originally intended aim.