What should I do in Madison, Wisconsin tomorrow?

I get to visit Madison, Wisconsin tomorrow! I have about six hours free in the middle of the day.

Where should I get something nice for lunch (for one)? What cool sights can I see? (Touristy things are fine!) Where can I sit around for a bit? If I want to take a bus somewhere, what’s the fare, and do I need coins?

(Also, I’ll need to make an hour-long phone call at some point. Obviously, my hotel room would be ideal for this, but if I’m already out and don’t want to go back to the hotel, where’s a nice, calm place where I can take that phone call without disturbances?)

I’m a college student and I tend to like… I dunno, normal college-y things?