What is why does this girl keep looking at me?

There could be a variety of reasons why someone might be frequently looking at you. It's important to consider the context and other cues to better understand the situation. Here are some possible explanations:

1. Interest or Attraction: She might be interested in you or attracted to you, which would lead to her looking at you more often. People often look at those they find appealing.

2. Curiosity: She could be curious about you for some reason. Maybe something about you piqued her interest, or she's trying to figure something out.

3. Recognition: She might think she recognizes you from somewhere or is trying to remember where she knows you from.

4. Non-Verbal Communication: Sometimes people use eye contact as a way of communicating or trying to engage you in a non-verbal way.

5. Coincidence: It could simply be coincidental that you catch her looking at you multiple times. She might not be intentionally focusing on you.

6. Social Dynamics: In some social scenarios, people might look at others to gauge reactions or understand group dynamics.

7. Personal Style or Appearance: Sometimes, people are drawn to someone because of their style, clothing, or a specific feature they find interesting.

To get a clearer idea, observe her body language and other social cues. If you're comfortable, you might consider briefly acknowledging her with a nod or smile to see how she responds. This can provide more insight into her intentions.