So, tomorrow I have a big expo at school and I was planning on asking this girl I like out. I'm kinda shitting myself at the thought of asking her (Never had a serious relationship). Any tips on how to make it more smooth and less out of nowhere?

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For context, we have to present projects we've been working on for a couple of months in our cafeteria and some classrooms and me and this girl are both in the cafeteria. I'm expecting a big crowd so there is no real quiet moment. Any tips are welcome because I feel like I don't want to blow this.