It’s not exactly standup. It’s not a reading, either. But David Sedaris tours better than most comedians and authors, hopping from theater to theater under the title of “humorist,” telling stories, critiquing society, and, well, being himself. What to expect when he takes the State Theatre stage this fall? Witty quips on fashion, travel, the election, and picking up litter in West Sussex, where he now lives, are all likely. Perhaps a dramatic interpretation of one of his many essays published in the New Yorker will follow. He may even whip out a few diary entries that form the basis of his next book, Theft by Finding, due out next year. You never know what you’re going to get with Sedaris, but you can bet it’s going to get laughs. The author’s previous books total 10 million copies in print, and include Me Talk Pretty One Day and Let’s Explore Diabetes with Owls. Sedaris has also collaborated with his sister Amy Sedaris to write several plays under the name “The Talent Family,” and can frequently be heard on NPR.