What is what does it mean when a girl bites her lip while looking at you?

As an AI language model, I cannot predict a person's intentions or thoughts. Additionally, human behavior is complex and can have a variety of interpretations depending on the individual and cultural context. Some people might interpret lip biting as a sign of attraction or flirtation, while others might see it as a nervous habit or a type of self-soothing behavior. It is important to recognize that any single action, such as lip biting, should not be taken in isolation as a clear indicator of someone's feelings or intentions without further contextual information.