Most Helpful Guy
Hey, I approached this girl. She was my junior and I didn't knew even a single thing about her to directly went to her and told her that I want to be friends with you. Let's hangout. Plain and simple , if see is interested she will go out with you otherwise go for someone else.
Most Helpful Girl
Be open and keep it simple.
Just be like hey I'm (name), I kind of like you and was wondering if we could hang out maybe go on a date.
Just keep it direct.