In a new book, the “Seinfeld” and “S.N.L.” writer shares the secrets to the perfect toast: don’t drink too much, and, remember, the Gettysburg Address was only two minutes long.

David Walliams ... DW: When I write a book, I think I want the child who is reading it to take away something that will make him think. Because it’s a funny book, it doesn’t mean you can ...