Abstract
This report presents a work performed using robots with different social interactive functionalities in a hotel public space in order to investigate human-robot interaction (HRI). We developed robots that able to make two styles of interaction: (i) Twin robots Gemini or dual Naos engaged in a conversation with body gestures, and hotel guests could receive information through overhearing the robots' conversation. (ii) A single robot Palro or single Nao detected the presence of guests and greeted them directly. In both cases, guest-behavior was studied by using four categories that define the level of a guest's response toward the robots. Several significant differences among the levels of response were observed in the experiments.
