There was a very good turnout for his book signing at Barnes and Nobles, and it was a capacity crowd when he spoke. We (I'm a member of Young Americans for Liberty) had some trouble getting the press access to Paul due to everyone in the Union being forced into the Dawghouse (a room/lounge in the Union where the press were going to meet Paul) due to inclement weather, but overall the event went almost perfect.
He didn't just stump for his book or speak a for half an hour. He spoke for over an hour, and he spoke about Austrian economics, individual liberty, and the importance of having a non-interventionist foreign policy. Anyone familiar with Paul wouldn't have been surprised at his message.
Everyone seemed to really enjoy his speech, and a lot of college-aged kids agreed with what was said.