Neil Patrick Harris is spending his time studying and resting in anticipation of the arrival of his and partner David Burkta’s twin babies due in the fall, according to People magazine. “[I’m] very, very excited. It’s the big, crazy calm before the ridiculous storm,” Harris says. “I'm trying to read as much as I can, and prep as much as I can. But there’s only so much you can do because each baby is super individual and totally their own person.”