What is hey meaning from a girl?

As an AI language model, I am not able to access the thoughts and intentions of individual people. However, "hey" is a common greeting used by individuals of all genders as a way to initiate conversation or to acknowledge someone's presence. Its meaning can vary depending on the context, tone, and relationship between the two individuals. If a girl says "hey" to someone, it could mean that she simply wants to say hello or start a conversation. It could also potentially indicate some level of interest or affection, but this can only be inferred based on the specific situation and the girl's behavior.