What is what does it mean when a girl says bye to you first?

When a girl says "bye" to you first, the interpretation can vary based on the context and the nature of your relationship with her. Here are a few possible meanings:

1. End of Conversation: It could simply indicate that she feels the conversation has come to a natural end, and she's ready to move on to other activities.

2. Courtesy: Saying "bye" first can be a polite gesture, indicating that she acknowledges the end of your interaction and is ensuring it closes on a good note.

3. Lack of Interest: In some cases, it might suggest that she is not particularly interested in continuing the conversation, whether because she's busy or just not engaged.

4. Social Cue: It can serve as a social cue that it’s time for both parties to part ways, especially in group settings or during events where there are many people to interact with.

5. Comfort Level: If she feels comfortable and familiar with you, she might feel confident enough to end the conversation at her discretion.

6. Cultural Norms: Depending on cultural or individual differences, some people are more inclined to take initiative in concluding interactions.

To understand her intention better, consider the overall context of the interaction, her body language, tone of voice, and any previous interactions you've had with her.