Well approaching girls is good. I approach any girl that looks like she would be fun to talk to.
And I don't care if she is a Senior.
Just be calm. Usually I don't plan out my approaches, just do what seems natural, and go for it.
The best way to approach a group, is with your own group of popular friends.
Despite what people say, you do not need to madly approach every girl you see.
While you might do this, I am sure there are tons, and it's best if they kind of don't already know you.
But once you start getting it on with some of the less popular, more fun girls, that are like HB7's and HB8's then you can go for the more popular, less fun HB9's and HB10's.
You have to trust me. Start small. Like you see girls that aren't too popular, but they are really fun.
They are just shy.
But like you might wait a while, till you are really good at approaches, before you approach the really HB10's.
Trust me, there is no reason you should set your self up for rejection. If you do, then you have the wrong mindset.
First, there is no such thing as a girl rejecting you. You reject yourself.
But if you really want to talk to this chick, you should try and have a reason.
I know I might be convincing you to not approach her, but that is only because there are better ways to go about it.