Random invite for prom she said yes, affraid to start texting her

I asked a random girl on my math's class if she would go with me to the portuguese version of "prom".
She said yes (she seems to be shy so that is why i think she accepted going with me) I took the oportunity and took her number too.
Now my problem is that I havent talked much with her face to face and I am a a bit intimidated with myself to start texting her...
I was wondering if this would be a good oppener:
"I was bored and started looking at my contact list and I saw your name, so hey! XP"
Any other tips that you could give me would be great!

"I was bored..." doesn't sound good. Why not just ask her for coffee after class so you can chat a little but it wouldn't take as long as if it's dinner. Maybe 30 minutes or so to get to know her and be comfortable before the prom.

texting is easy! I can understand your fear of saying the wrong thing at first, but honestly just be real and play it cool and you'll be fine. A simple greeting text like "Hey it's me (insert your real name), how you doing tonight?" will work just fine. Saying "I was bored and I saw your name in my contacts" will come off cheesy and seriously uncool. A girl doesn't want to think you're texting her just because you're bored... nor does she want to think you had to "think" about texting her. Just say what I said above and you'll be fine I'm sure. Good luck!

^^ He's got it right.

Be yourself and be real.

Chances are, she said yes to the prom for a reason (whatever that reason is). You have the upper hand so to speak.

Maybe try hanging out with her a few times before prom. Catching her at school or tell her to tag along to something exciting.

I once took a girl out offroading with me in my SUV. She was scared but it was great bonding. I got to show her my interests and she learned new things that she's never learned before. I even taught her "the basics" of offroading and let her try on some basic terrain.

Just an idea. I'd send a text along the lines of what Connor said.

"Hey it's me "insert name here". How's it goin?"

Then from there you can develop conversation. Don't text for prolong periods of time. If you have a lot to say, it's best to save it for face to face. Just remember, she has interests too and chances are she's not going to be into all of your interests as you're not going to be into all of hers. So don't just focus on your interests. Be observant when you chill with her and try and get some of her interests out on the table without you seeming to troll her for interests. Women like men who can deduce things from observations. The art of seduction is the art of deduction. Lame but true. Sherlock Holmes does this very well btw if you have read some of the stories. He's excellent at figuring out things just by observing and you'll notice he always makes interesting conversations based on deductions (granted they are not about women, but it can be modified to work with her).