Social Media applications have become one of the most pervasive and most used digital technologies in modern societies. Consumer uses it, among others, to share and consume information, stay in contact with other users and to stay up to date about local events and activities. As producer, it serves as a highly targeted advertising platform. However, it can be argued that the main focus of current Social Media platforms is in the promotion of premium content and not, as it is often perceived, the promotion of inter-human relationships. The former concept relies on engagement trackings, such as likes and comments, to assess interest for content targeting. Interhuman relationships, however, are more difficult to assess, measure and therefore promote. This is mostly due to the complexity of trust-based interactions between individuals. Without assessing trustworthiness however it is difficult to promote meaningful relationships in Social Media Applications. To overcome this shortcoming we introduce a model of interpersonal trust as a function of multidimensional features that applies to Social Media specific interactions.