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.

Drew Barrymore and Cynthia Erivo discussed the importance of physical communication during Erivo's Dec. 10 appearance on 'The Drew Barrymore Show,' after Barrymore said people sometimes tell her to "back off a little bit" with her touchy interview style.

Drew Barrymore said she hopes people will become "more comfortable" with being physically touched after being warned to back off her guests.