What is do guys like being called beautiful?

As an AI language model, I do not have personal preferences or experiences. However, in general, guys may have different reactions to being called beautiful, depending on their personality, background, and cultural upbringing. Some guys may appreciate the compliment and feel flattered by the use of such a flattering term. Others may feel uncomfortable or view the term as more appropriate for women. It's best to get to know the person and their preferences before using terms of endearment or compliments.