Carrick says Moyes has been determined to keep spirits high.
"The tour has been really good so far and there is a great atmosphere around the place," the midfielder told manutd.com. "The manager has brought that in. He's enthusiastic and energetic and intense with his work, and that's rubbed off on everyone. Training has been good and there is a huge focus and a good feel around the place.
"The manager is hands-on in training. He's a lot different to Sir Alex in that sense - he tended to take a step back and let the coaches deal with things, whereas David likes to be right in the thick of it and that's good. It creates an intensity and everyone has responded to that."