1 - Make a profile. Your profile is very similar to a resume. Make sure you have all of your activities on your profile along with any jobs or internships.
2 - Get Connected! They make it easy for you by importing contacts from your email.
3 - Join Groups! Below is a snapshot of what groups I've joined. You can do searches for groups according to industries, interests, and obviously your university.
Just make sure your profile is professional. Recruiters check out profiles on here (as well as on Facebook) so keep it safe! Once you get the hang of LinkedIn, you will be able to search for jobs or even Alumni that may be working at the company you would like to intern/work for. Good luck!
~ Kat Castro, Assistant Director