What is when a guy says something you do is cute?

When a guy says something you do is cute, it means he finds that particular thing attractive or endearing. It could be a physical action or a characteristic of your personality that he finds appealing. It typically shows that he has positive feelings towards you and wants to express his admiration. It could also be a way for him to flirt with you or express interest in a romantic relationship. However, it's always important to consider the context and tone in which he says it, as it can vary depending on the situation and his intentions.