And I already opened this girl,got some kino going on and I believe even some rapport.
She's been giving me a few IOIs and we are having a school outing tomorow from the bus to a tourist spot here.

Any suggestions on what I can do?

I would probably try some c&f and try to get some sexual tension going, hold hands and se what happens.

I generally always have C&F on naturally but the thing is she's a part of my social circle so I am not sure if I can get sexual tension escalated physically yet.

I'm no expert, but you want to make sure you're not ending up with LJBF. Keep doing kino.

alot of kino and push/pull.

I generally do a lot of kino and continued today not sure if I escalated enough since there was no opportunity for isolation(I would have then run OMS on her) as she is part of my social circle and that could be risky.
So we ended up chilling eating lunch and snacks together in that venue with our other friends.She was flirting with me in the bus but she's a flirt so I am not sure if I can take that as an IOI aside from that she didn't seem to give me any other IOIs except that here body language is open when talking to me.Heck,I even rated the attractiveness of people with her since she joined in,bad move for me to join?What could I have done in the situation?
At the end of the trip she said she knew my exact rating number,which might not be good to me as I am not that good looking.

So I still talk to her a bit everyday in school with kino and some flirting on her part.
Any advice?