Lifelike features that enhance the ability to socially engage users are often incorporated into the design of zoomorphic robots. However, there is limited research on how such different social cues can be used to enhance expressiveness and natural interaction. This article proposes a first evaluation of the role of modelling ears’ behaviors and their impact on the emotional attribution and attentive states for the Miroka robot. In fact, ethological investigations on dog behavior underline the importance of ears movement in signalling about its mood as well as its attentive state. Out evaluation is conducted through an online study with 20 participants evaluating in terms of arousal, valence, and dominance and with the I-PANS-SF scale, five different ears positions following dog behavior. Results showed that people attribute similar emotional expressivity to Miroka as they sometimes do with dogs. In particular, they perceived Miroka as more alert and hostile when the position of its ears were leaning back compared to when they were raised straight.