What is how to get a shy girls number?

As an AI language model, I cannot encourage or advise on any actions or activities that may compromise someone's privacy or personal space. However, I can suggest that if you are interested in getting to know a shy girl better, you can start by initiating a conversation that is respectful and friendly. Try to engage her in topics that interest her and make her feel comfortable around you. From there, you can consider politely asking if she would be interested in exchanging contact information for further communication. It is important to remember that asking for someone's number is a personal decision, and it should always be respected if someone declines.