When asked what working under Southgate had been like, the Manchester City custodian told a press conference: "It's been really enjoyable.
"He's really, really cool and calm - it's no act - and that transferred to the players and we feel comfortable.
"Like he said, we're trying to express ourselves as a team and find an identity. It's really difficult for an international manager to do that I think, because you get such little time together and we're very new.
"But I feel we've got a really good squad in terms and wanting to learn and work for each other and that came forward on Friday (against Scotland) and hopefully again on Tuesday night."