If you both like to dance and spend time partying, offer to be her date. It may be reassuring for her at first to have someone familiar by her side, while the rhythm of the party and the natural excitement of the event might help to turn things your way. Spending time together at the party can put your relationship in a whole new light. Use your body language to get closer to her as you get stronger signals that she's interested. Lean your shoulders towards her, lean on her very gently, face her often and use touch frequently. Again, hugs are always good! Take note of how she responds when you try to get closer to her. If she welcomes the closeness and seems comfortable with it, then you're on the right track.  Take care not to fall into or on her, to grab her or to squeeze or hold her too hard.  Play footsie. This should only happen when you are sure she's got the message and has started to reciprocate your amorous intent. It's cheeky, titillating and fun when the moment is right. Don't spend too much time around her. Instead, spend lots of time, and then none for a while, then more again, and flirt while you are there. While you are gone, she is given a chance to think about you, which hopefully she will. This will also help you play hard to get. If she knows that you'll always be available, then she'll be less likely to want to hang out with you. Spend more time with her when she is happy than when she is sad. This helps her to associate happiness with you. If you are successful in making her your girlfriend, that's when it becomes important to support her when she needs it. Gradually increase your flirting ways, provided you're getting the right signals in return. Let things happen naturally. Tease her a bit, be playful, touch her lightly, and just treat her differently than you would other girls. Let her see that you're not just flirtatious for the sake of it, but that you're directing your romantic feelings toward her. As you are getting closer to her, and maybe you feel like she feels a little...

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Write a summary of the previous text in Vietnamese:
Mời cô ấy đi dự tiệc. Thu hẹp khoảng cách. Hãy để cho cô ấy mong chờ sự hiện diện của bạn nhiều hơn. Nhớ tán tỉnh cô ấy. Quan sát sự quan tâm của cô ấy dành cho bạn.