Casually show her tons of food pics in class so you can whine about being hungry together
When class ends, just ask if she wants to go grab something to eat

Depends. Can you talk to her online? Is it in person? Is she around other people all the time?
How close are you two? Childhood friends? Coworkers? Enemies?
Does she have a special quirk? Does she give everyone a nickname?

That food one is pretty good

I learned a long time ago that you don’t ever accept advice on this subject from the same demographic as your target. You don’t ask a deer how to hunt, you ask a hunter. A deer’s perspective of the process is inherently flawed to what you are trying to accomplish. Second thing I learned is that she’s going to yes or no and unless you are at the extreme ends of the spectrum in asking so it doesn’t matter how you ask. A simple “You’re pretty cool, would you like to hang out sometime?” will do the trick 99% of the time. Her answer to that will tell you if she’s interested. If she is and you want to go for bonus points don’t lock down a date right then. Say something like “Awesome. I’ll come up with something.” and leave it at that for the day. The next day come back and make the plans.

Ofc the food one is good
I'm good

Yes, deer. (Pun master over here) ((and poet apparently)) (((if only I had learned to use parenthesis)))

The first time I asked a someone out, I was 19. It was the last day of the term and I was super nervous. I dressed up in a silk shirt and tie, for some reason. At the end of class, I caught up to her and she said, "oh wow, it looks like you're heading to work, eh?" My insanely dumb reply that still makes me cringe was to pop my shirt and say, "I don't work in silk." She didn't have a response of course, so I pushed forward with "so you want to get dinner and a movie sometime?" But I somehow said it all in one word. She asked me to repeat myself and I managed to slow down and ask. She said she was flattered but she had a boyfriend. I was ready for a yes or a no so I didn't know what to do with this, and I got really stressed for some reason. I panicked and realized I was about to start crying, so I turned around and ran away. I never saw her again.. So just do the opposite of all of that and I think you'll do great. That was years ago, and now I know @scatmandingo has the right idea lol

Be like Shrek when he gives Fiona the weed rat at the campfire. He tells her about what the rat goes well with and that he can cook for her some time.

For people who are old school
Hit her in the head and carry her on your shoulders. That would do it

Just be honest, and if you fail, then move on. “I don’t focus on the past darling, it distracts me from the now.” You just have to have some or an illusion of confidence. Just be straight up and you can at least say you tried

I’m a girl (also a lesbian so I can’t talk for straight girls). Honestly, just say something like “It’s very nice talking to you, would you like to [activity] some time?” Be straightforward about it. Don’t try to make it a big romantic gesture unless you know FOR A FACT she likes that stuff. Sometimes doing that makes people come off as too eager or desperate, but it varies person-to-person. If she turns you down, just take it respectfully and give her space.

They have some “problem.” Maybe they are stressed, bored, hungry, whatever. You have strengths and things to offer. If you have interest in them beyond just looks there is some common ground. Maybe it’s a hobby, or maybe you just like to talk to each other. Cater to that, take them to a beach or somewhere to ease stress, take them to do something fun, or if you just like to talk combine what you know about them and set up a dinner with a scenic walk, a hike and lunch, a movie they want to see, a concert, whatever. Don’t put them on a pedestal, they’re a person, you’re a person. Based on who they are and who you are, use whatever approach suits that (silly, weird, awkward, smooth, direct...) and just ask if they’d like to join you for an activity of some sort, or just that you’d like to spend some more time talking. That’s all it is. Two people seeing if they enjoy each other’s company enough to spend more time together. Repeat until someone is over it, or you’re old and gray.

I've never asked a girl on a date; I ask people to hangout. Asking to go on a date brings emotion, feelings and complexities into the question; whilst saying casually "Yo I wanna see this new movie, wanna come with?" or some casual shit like that has no implication or expectations. Have a good time together 1 on 1 and if you're gonna smack faces you'll smack faces.
Boom