It pays to be prepared. You don't just take a math test without studying, or pass a driver's ed test without taking a class. The people who put time and thought into winning their crush usually have a better shot at winning them. Try to strike a good balance between preparing and being creepily prepared. Your crush likes getting the extra attention you want to give them, but they don't want to feel like you've been thinking about them every single second for the past three days. That's a bit creepy, even if it might be true! Take deep breaths and practice letting your entire body go limp. This is sometimes easier when you aren't in public. Try relaxing in your bed before going to sleep or when you get home or in the shower. You can get over your nervousness — or eliminate it altogether — by taking a moment to consider your options. Practice at home before actually approaching your crush, and you won't be caught in an awkward moment of silence. Take your time, especially if you're about to make a first impression on someone who's important to you.  Practice in the mirror. You'll want to make sure you know what you're going to say, but don't make it sound rehearsed. Imagine a variety of situations in which you might have the opportunity to talk to your crush, and act these out in front of the mirror. The more prepared you are, the more confident you'll be during the conversation itself. Have fun with it. Sure, try the serious versions of what you want to say, but also say it in a completely goofy way that makes you laugh. The less serious you take yourself, the more natural you will be when the time comes. Take the time to notice what pictures they have in their notebook, or what they eat at lunch, or which sports they like to play. Knowing these small but important details will help you make conversation later on. It could help you say something like:  "I noticed those movies on your notebook. I'm all about movies from the '80s. Do you have a favorite?" Hey, my friends and I were going to play some pickup...

How would you rephrase that briefly using Vietnamese?
Dành chút thời gian chuẩn bị trước khi tiến đến nói chuyện với họ. Trước tiên dành chút thời gian thư giãn. Suy nghĩ trước khi nói. Tìm hiểu một chút về họ. Tìm các cách sáng tạo để nâng cao sự tự tin. Không quan tâm đến kết quả.