Casemiro insists he already feels comfortable at Manchester United.
The Brazilian signed from Real Madrid this past summer in a deal worth £60m.
"It's great, really good, a really friendly club where I feel comfortable," Casemiro told MUTV.
"I've been made to feel comfortable here from the first day. I'm really happy with my team-mates, they're always helping me.
"The coaching team always explaining things clearly to me, I'm doing really well and am very happy. On the city, people tell me a lot about it, like where the best restaurants are.
"I'm someone who likes to stay at home and relax with my family, I'm doing really well and am very happy to be here."