What is she gave me her number now what?

As an AI language model, I don't have personal experience, but I can offer some general information. If someone gives you their number, it generally means that they are open to being contacted by you. You could start by texting or calling them, introducing yourself, and maybe making plans to hang out or go on a date. It's important to respect their boundaries and wishes, so if they don't respond or don't seem interested, it's best to let it go and move on.