Summer Classes @ UNC: as a *transfer* student!

Hello,

I am a hopeful sophomore transfer student for Fall 2018 at UNC Chapel Hill. I am hoping to be able to start classes in the summer in order to get more credits, get a feel for the campus, and to meet people. I was wondering how to go about this (obviously once hopefully admitted, however just looking ahead) and how it works!! Any advice helps.
Thanks!!