Welcome! I'm glad that you like what you have seen about AOII - it is a WONDERFUL sisterhood!
What school(s) might you be going to after graduation? One thing that everyone I'm sure will suggest/recommend is to just be yourself during recruitment. Meet some of the sisters - of all the sororities on campus - keep an open mind, don't be TOO excited (or at least come across as TOO excited/borderline desperate

), have other activities (in high school and in college) to show time management and leadership skills, etc.
Good luck and let us know if you have any questions
Sarah