The winger-turned-full-back began his career with the Hornets before moving to Old Trafford via Aston Villa.
Young knows that his side can close the gap to league-leaders Manchester City to five points with victory. Pep Guardiola’s side host Southampton tomorrow (8pm).
But Young, who has recently been recalled to Gareth Southgate’s England squad, acknowledges that it will be a tough game against Watford, who themselves are exceeding expectations in eighth place.
“I still do know a few (there) and I’ve still got friends who work there,” the United full-back said.
“I talk to them now and again and see how things are going. Of course I love going back there. I was there from when I was 10 to 21.
“It is where I plied my trade as a kid and I learned the game in my early years so it is always nice to go back there – but it will be even better if we go back there and get three points.
“It’s going to be a tough game. The place has changed in the years since I left.
“They are doing well in the league so we know it is going to be another tough game.”
Watford boss Marco Silva has attracted much interest for the job he is doing at Vicarage Road.
And Young believes the Portuguese manager deserves all the credit.
“He’s proving a good manager,” added Young,
“He has got them playing, scoring goals, winning games so they are doing well.
“But I always say we can’t concentrate on the other team. We know we are away but we still want to get all the three points.”