In the fourth industrial revolution we are witnessing the appearance of new interactive technologies designed to support older adults (OA). This technology has mostly focused on assistance based on age-derived issues and has put a special emphasis on offering solutions to them. The goal of this project is to investigate how age-related differences affect the interaction between a human and the system –be it a robot or a virtual agent– in terms such as engagement with the interaction, processing of social cues and the extent to which a performed task is actually facilitated by the agent. The project focuses on studying the means of interaction with assistive systems between different groups of users-younger and older adults-rather than exploring final applications of technology as a tailored solution for different people.