<human>: Summarize the given text in a few sentences.

I'm planning on asking a girl I'm interested in out after a class on Wednesday.  I'm a (20M) and she's a (21F), and I'm wondering what the best way to go about this would be.  I had relationships all throughout high school but nothing so far yet in college, so I'm not sure if I should go about it differently than I did in high school.

I'm hopeful about it but not that confident that she'll say yes, mostly because she's two grades ahead of me (I asked about the age gap on here a day or two ago).  The way I plan on asking is just pulling her aside after class and saying, 'Hey, I know this is kind of coming out of nowhere, but would you want to get dinner or something sometime this week?'

I realize that sounds pretty beta/not that confident, but it is a bit true that it's coming out of nowhere; I don't think she expects me to ask her out at all.  That's not to say we don't have chemistry--the reason I haven't dated at all in college as of yet is just because I haven't really found anyone I've liked that much (except this girl).

I guess my question is, should I act as confident as possible and tell her that we should go out, like "we should go out to dinner this week" or should I ask her if she wants to?  I want it to be as clear as possible that this would be a date, and not like a friendly thing.
<bot>: I'm planning on asking a girl out Wednesday, how do I ask her in a way that makes it clear that it's a date and what would be the best way to phrase it?