<human>: Can you give me a shortened version of the text?

So, I literally never had something like a date before. Every previous relationship just happened (for example slept regularly in the same bed after a night out with friends and ended up kissing one morning, or got in touch online and were basically in a relationship before we really met the first time).

This situation is different.

I met this beautiful girl (I'll call her Tina) at a birthday party of another friend and we hang out a lot since that point. But never alone as she always (literally) hangs out with her best (female) friend (I'll call her Kathy). Some time ago now we three (remember her best friend lol) went to watch a horror movie and I had to sit in the middle so both got a hand to clinch on. As Tina took my hand, oh my, I lost my heart to her. And that's were my problems begin.

I have literally no idea how/where to start. I'm a very introverted and insecure guy. I won't have any chances to somehow meet her without company any soon BUT there is new years eve coming up that we all planned to be together (Kathy + her bf, Tina and myself) and I guess that might be my best bet to somehow open up to her.

She herself seems to be somewhat insecure herself as Kathy said that Tina had no luck with guys in the past years, but she's way more extroverted than I am (one thing that I like despite me being introverted)

What would your advice be for a insecure, introverted guy to open up to a girl at new years eve?
<bot>: Me being insecure and never had a real date need help to open up to a girl about my feelings at new years eve as there won't be any occasions to talk to her privately any time soon