The article discusses the importance of two-way online rating systems as one of the pillars of the sharing-economy, transforming strangers into trustable providers and customers. The article´s objective is to apply the concepts and practice based lens developed by Orlikowski and Scott (2014) to a two-way rating system by adding the provider evaluation of their clients. The article also explores the case study of usage of the rating systems by Uber driders (the combination of drivers and riders in São Paulo, Brazil. By conducting semi-structured interviews, a practical usage of rating was explored focusing on its usage, importance, effects on driders, unveiling some unexpected usages of it.