"Well the induction was to have a fight with Andy Carroll", Hart joked.
"I spread myself for the ball and get hit in the face a lot but this is the first time it's marked me".
Hart, along with the three other new signings at the club will certainly add the experience of success, so does the keeper think that is important?
The England global spent last season on loan at Torino and he is starting to seek a permanent exit.
Hart, ironically, starts his new chapter in Manchester at old rivals United tomorrow and expects the usual boos.
He has already had the blessing of England boss Gareth Southgate, who also welcomes his return.
"The permanent move was going to be hard", Hart said to Sky Sports. The fans have been so supportive of me, even in the a year ago, and that's something that will never die with me. Arnautovic could have a bigger role with West Ham than he did with Stoke, especially when playing with the always-dangerous Chicharito.
"But I want to be learning and improving all the time, no matter where I am. That's what I'll keep doing until my body won't let me". Jamo said I'd love it here when I spoke to him.
"I have enjoyed it in the dressing room".
"The chairman wants him to stay, I want him to stay and so do the players".
"I hope it is going to help", he explained.
The England global has again left the Citizens this summer to join West Ham United on loan, and despite ideally wanting a permanent move, Hart has revealed that he can not wait to turn out for the Hammers.
"I'm trying to make a point to Slaven", said Hart. I'm trying to make a point to Gareth Southgate.
"I can't answer why City let me go".
"But my feelings for City will never change".
"You can moan about it and you can make smart comments and try to work out why it was done, or you can get on with it". There's no point taking it too personally because it's not all about me. "I know the West Ham fans are going to be dying for us to play at home, so we need to put them in the right mood when that time does come". "And if everyone has a similar mindset, we have a unsafe squad".
Hart is ready for his next challenge. Working hard isn't a problem for me.