Then try entertaining her with magic or, better yet, your personality.
Too many performers rely on magic to speak for them. Their presentation is just "look" at what I can do. That creates a gap between the performer and the audience based on "I know the secret and you don't." It puts the audience and performers on different sides - "I fool you and you are the fool."
If you change your presentation, you can bring the audience to your side. I treat my audience like we are in it together. They laugh, they listen, they smile, the think about what I'm saying. Then, there is the point they understand what the effect will be. They think there is no way that can happen but really want to see it happen. They are hoping that I succeed and share my joy when I do. I'm always glad to work with people to develop their presentation.
With girls, sometimes it is best not to try to impress them with magic. Rather, let them like you for who you are. Be confident and happy, listen, be engaging and try to talk about things you have in common. Typically, magic is a crutch for some people - you are better to just leave the cards in your pocket and be yourself. If you perform magic, sometimes you become more interesting performing magic for others - people often perceive you the way they think others see you.