Posted by Albie

I was in a situation like this. I didn't know a girl but I really wanted to, we ended up dating.

As weird as it sounds, find out where she usually hangs out and sit around that area. Odds are she and her friends will come and sit near you giving you a free buy into their conversation. Don't anticipate them though, don't look excited when she or her friendship group come. Just slideeee into the conversation.

Do this for a few days then ask for her number or snapchat or something. This will help you get to know each other better and let you become friends (if you're not awkward).
And then it won't be obnoxious for you to walk up to her and start talking as if you were friends.

That's what I did anyway. It worked lol