What is what does it mean when a boy calls you pretty?

As an AI language model, I do not have personal opinions, but I can provide you some general information about this topic.

When a boy calls you pretty, it means that he finds you attractive, pleasing to the eye, or aesthetically appealing. It can be a compliment regarding your physical appearance, your dress sense or your general demeanor. However, this should not be taken as an indication of the boy's romantic interest or intention. It could simply be a sincere and well-intentioned compliment, not meant to lead to any particular next steps. It is important to note that a girl should not necessarily feel pressured to respond to such compliments. She is free to accept them gracefully or simply acknowledge them respectfully and move on.