The answer is leave it at home. I have an iPad myself and I consider myself to be an Apple fan, there was even a time in my past where I was a hardcore fanboy. At some point you realize that other mothers also have beautiful daughters. This is especially true in college or in the university life.
When I refer to a Tablet-PC I usually emphasize the pen and that’s a thing the iPad is missing. There are “pen” for the iPad but the problem is that those devices (and that’s also true for a lot of the Android tablets) can’t distinguish between your palm and the pen. The result of this is that you hold your hand in an awkward position while writing and drawing. That’s the reason I always say that an iPad is only Paper 2.0 not Pen & Paper 2.0. There is this nice Windows 8 ad that shows how a normal Windows 8 notebook outperforms iPads in the college.
You have to choose a device which is fit for the operation and a pen based tablet would be even better. My experience showed me that I can humiliate a iPad user with an 5 year old Tablet-PC like an ThinkPad x201 tablet inside a university.
What experiences did you make?