A couple of questions about graduate school interviews...
1. Obviously you want to look nice and put together, but is this a suit-and-tie kind of thing or a slacks-and-a-sweater kind of thing? Does it matter the area of the country? I live in Portland, OR and have found that people here are *really* casual about dress, to the point where I've gone to a business-y meeting and felt overdressed because I wasn't wearing a fleece and khakis. Interview is also on the West Coast.
2. What kinds of things do they ask? Is it like a verbal admissions essay or something different?
3. Should I have questions ready to ask?