on physical communication.The “Wicked” star, 37, explained on Tuesday’s episode of “The Drew Barrymore Show” why she and costar Ariana Grande, 31, are continuously in close physical contact and how they use it as a way to deliver messages to each other during subtly during conversations. “Is it true that [Grande] is as touchy? I’m so touchy,” Barrymore, 49, admitted. “People have to warn me, they’re like, ‘Back off a little bit.’ And I’m like, ‘Why?’”The talk show host has been known for her up close and personal interview style, which includes holding guests’ hands during interviews and hugging them throughout the show.