<human>: Can you succinctly summarize the text in 1-3 sentences?

So here's the scoop...

Normally when I've been interested in a girl, I've done the slow, long process of waiting until I was ABSOLUTELY certain that she liked me before I made any kind of move. Very passive. While this approach has worked in the past, I really don't want to keep using it, because, well, it takes a long time, a lot of patience, and it just seems a little cowardly now. I'm a grown ass man, I can do better.

So a little background...

The girl I'm interested in is a friend who I've been texting a lot lately, we have a lot in common, and when we went out for dinner with other people for a mutual friend's birthday on Friday night, she waited in her car for 45 minutes for me to get there before going in even though everyone else was there and eating already, we spent most of the time talking to just ourselves, and even after everyone else left, we stayed outside in the restaurant parking lot for about 3 hours still talking. I've gotten lots of indication that she's interested, so I think it's time to try and move things forward. (There have been a lot of other things, too, this is just the easiest to describe)

The thing is...I've never done this before. I'm nervous as HELL about it, because it's so new to me, it's really taking me out of my comfort zone, and frankly, I really don't know what I should say or how I should say it. In every other aspect of my life, I'm really confident, I can talk to anyone about pretty much anything with ease, but when it gets to this...not so much.

We live in different cities, but I'm going to be seeing her for most of the day Saturday, so I'd like to do it then. So, redditors who have successfully asked someone out or have been successfully asked out...how do I go about moving things forward with this girl in a way that doesn't scream "I'M NOT VERY GOOD AT THIS"?
<bot>: how do I ask out a girl I'm interested in a way other than waiting until it's painfully clear she likes me?