He read from his new book (which is great - currently the #1 NY Times bestseller - go get a copy now!) and, even better, he read to us from his next children's book which comes out in September. He had the audience in stitches with it!
Witty, charming, gracious. If you haven't been introduced to Mr. Neil Gaiman yet just watch one of the many videos of him. May I suggest the following from a 2009 episode of The Colbert Report when he talks about his Newberry winner The Graveyard Book.
If you are a teacher and haven't read Neil Gaiman to your students you need to remedy this immediately. His picture books are especially wonderful for the upper grades.
Also check out this fun book - it's great for a read aloud!