Ben Silverman was quick on his feet when asked why he paired sneakers with a gray business suit at the launch party for Notional, IAC’s new production shop helmed by CollegeHumor.com’s Ricky Van Veen. “We’re always moving. This is a company on the go!” Silverman, the former NBC Entertainment chairman who is now running his own company at IAC called Electus, said to Page Six. Also in attendance were “New Moon” star Elizabeth Reaser, Nick Cannon, Dan Abrams and actress Regina King.