If you want to compliment someone on their appearance, you could say:
* "Eres muy guapo/a" (You are very handsome/beautiful) - This is a common and respectful way to compliment someone's appearance.
* "Tienes un rostro muy bonito/a" (You have a very beautiful face) - This is a more formal way of complimenting someone's appearance.
* "Te ves muy bien" (You look very good) - This is a more general compliment that can be used in a variety of situations.
It's important to be mindful of cultural differences when giving compliments. What might be considered a polite compliment in one culture could be seen as inappropriate in another.
If you're unsure about how to compliment someone, it's always best to err on the side of caution and avoid using language that could be interpreted as overly familiar or inappropriate.