Much of it is forming relationships. With peers, teachers, mentors. Some of that is structured, a lot of it is not.
This may be on my mind because D has just entered a structured mentor (alumni) program at her college, or because I’ve read these two things recently:
http://www.huffingtonpost.com/adam-weinberg/thriving-in-college-the-p_b_8167578.html - the pres of Denison talking about the importance of forming relationships in college
http://www.questbridge.org/intro-letter - QB president’s letter to applicants which is also about the important of forming relationships, esp with mentors.