Seriously?
Okay, I'll try to be serious, though (like the scorpion and the frog) it is not really in my nature.
1. Don't do it. The way you have it planned out seems to guarantee a disaster. You're going to seem like a creepy psycho stalker.
2. If you can pull it off - and by that I mean being able to hold a semi-rational conversation - it would not be unreasonable to ask her to talk. Hold a short private conversation and, very low key, let her know that your feelings for her have grown, that you're really going to miss her, that you'd like to stay in touch by electronic means during the absence. Did I mention short? The longer you talk the more you focus on yourself, and you really really REALLY need to pay some attention to her. LISTEN to what she says. Then (if she doesn't totally blow you off) tell her you bought her a present to remember you by and give her the ring.
3. If you insist on going the public route, PLEASE PLEASE arrange for somebody to video it. This is going to be the most awesome fail EVER!!! I want to see it. I may even use it as training material.
Well, it's too late...
I'll tell you how it happened in detail though.
I was on my way to the Café, when I bumped into her best friend walking in opposite direction with my best friend with whom I went shopping for the gift, so he was quite excited to see me humiliated. They told me that I was walking in the wrong direction. I was quite sure, I had checked it on Google maps, even after another of my friends had told me that I was going in the opposite direction just a minute before. That's how a retarded, stubborn, pretentious imbecile I am. Don't get me wrong, I'm supposed to be smart, as do my classmates, since it's sort of like an Ivy League Highschool, it's just that I have HFA. I joined this group, as expected, and A's friend joined us. That guy made fun of my depressed look and unresponsiveness for an hour straight. Seriously though, I was staring blankly and sulkily at the mirror or the wall all the day. Fortunately, that guy left just before she arrived. There were 29 people there, and I knew only half of them.
She finally came after like an hour and a half, only to see first and stare at my ugly *** face as she climbed up the stairs. The hugging ceremony began, and as you can assume, I hugged her last with my friend. Then I proceeded into staring further at the mirror like a retarded imbecile like me would do and texting my friends, who were giving me advice, anxiously. I didn't even eat cake. (Turned out that they made the chocolate cake with raspberry cream by mistake and they're gonna compensate for that, so I'l still have some cake in the close future.) After an hour of pointless conversations, which excluded me for most of the time -I was so pathetic that, one of the guys said "Look, he's speaking!" when I tried to answer a question, she hasn't heard that though- there was a photo shoot period, during which I sat still at my seat. Then People started leaving.
My friend was teasing me all the time, telling me that it's the right time constantly, and he said to girls who sat right next to me, with whom we had agreed to leave in a few minues, quietly so she couldn't hear, stuff like "Look at what this psycho is gonna do." and "This will be epically awkward!". They got super curious. They probably thought it was gonna be a confession of love. I didn't let them know what it was that I was gonna do at first, but when we stood up to say her goodbye and hug her and stuff, I opened my backpack. One of the girls, who is into poetry, shouted (but she still couldn't hear) "OMG! He's gonna read a poem!". I replied "NO!", looking at her, eyes wide-open, as if I thought that'd be awkward. Then I said, "Though 'bla bla' would really go with this."
I was actually thinking of having this bla bla, which is a poem about departure, written down on a rolled up aged paper with a red ribbon to give along with the ring. Fortunately I didn't do that.
I slowly lifted up the box to show them, and the other girl acted surprisedly, saying "Wow, a gift!".
The fun part starts.
We walked towards her. First the girls made farewell. Then my friend, who was constantly giggling during the preceding and following few minutes.
-
I was on pins and needles.
I was the next and the last to bid adieu. sh*t.
My heart missed a beat.
I was feeling butterflies in my stomach.
I got the jitters.
I said her name.
I pulled out the box.
My eyes got wet and teary.
I was shaking like a leaf.
I said, or tried to say some cliché polite bullshit, and not anything even slightly alike what you suggested.
But I was tongue-tied and my voice was trembling.
I felt like crying but I was able to hold myself.
She took in a quick breath, eyes and mouth wide-open.
She kindly thanked me.
She put the gift on the table.
We hugged for, um, longer than normal.
My friend was still giggling.
She didn't open the box in my presence, cause we left asap.
I was still shaking an hour after this.
Don't make fun of me plz, I'm lying in bed, crying to Rach 3. Okay, and Nights in White Satin.
Topic: Tell me about your love life