Bruce signed a three-year contract on Friday, marking his first return to football after being sacked by Sunderland back in November.
And the 51-year-old claims he now feels refreshed after a much-needed break, and is eager to remind people of his abilities.
"The last few months have been the first time I've been out of the game for a long, long time,” Bruce told the club’s official website.
“I probably needed the break because it refreshes you. But it also makes you more hungry to come back and remind people about what you can do.
“I can't wait to get back to work and the wife is delighted that I'm going to be out from under her feet."
Bruce has not managed in England’s second tier for nearly a decade, and takes charge of a side who has been gunning for promotion ever since their demotion to the Championship in 2010.
But, the former Birmingham City boss is keen to put his experiences of guiding a team into the Premier League at the KC Stadium.
"I've been fortunate to manage in the Premier League for the past eight or nine years, but I've had some good times in the Championship as well and I've enjoyed those times,” he added.
"I've also enjoyed the challenge of the Championship and trying to get a team promoted from it. That's why I'm here and that's what I want to try and do."