You can just show up. TG is Friday in the atrium, it will definitely give you the best taste of the culture outside of the class environment plus there is free beer and often are events. There is an eating contest this week and a drag show in a few more weeks. Monday you can have lunch with a student which is a good time to pick people's brain in a less formal environment. If you visit on Tuesdays just go to the Keg at night and you will see hundreds of Kellogg students there...currently there are weekly beer olympics with sections competing against each other in various different drinking games. I dont drink but its a time for everyone to let loose and just have a good time.
You can request classes. I would suggest trying to get into Marketing with Hennessey or Grayson, or Business Strategy with Mazzeo. If you let me know what day you are coming I can check class schedules for you. Definitely dont come on Wed, we dont have classes...there are still lots of students on campus but they are there for recruiting, group work, or meetings so it will be harder to get to interact with them.
https://www.kellogg.northwestern.edu/Programs/FullTimeMBA/Admissions_Events/On_Campus_Events.aspx _________________
Kellogg Class of 2010...still active and willing to help. However, I do not do profile reviews, don't offer predictions on chances and am far to busy to review essays, so save the energy of writing me a PM seeking help for these. If I don't respond to a PM that is not one of the previously mentioned trash can destined messages, please don't take it personally I get so many messages I have a hard to responding to most. The more interesting, compelling, or humorous you message the more likely I am to respond.