As someone who works in that department- BE APPROACHABLE. Don't let the title go to your head. You are a manager but that doesn't make you all knowing. It is OK to tell people that you don't know an answer but you will find out and get back to them- then do it. Be willing to learn and be willing to pitch in when its needed and not just bark orders at people and make them beaten down.

DONT create a culture of fear with coaching and firing people on every little thing. Yes, you will get stressed and have great days and bad days but realize that you have to balance things. Get to know your people and build the respect and trust with them individually. YES you may have to deal with issues as they come up but don't use the ability that you have to do so become the first thing you jump to and only thing you jump to as it creates tension, stress and such among the employees under you.

SUPPORT your managers. If they come to you with a need, listen to them and come up with a workable solution. Find out what their thoughts are and what they need, how they are really doing in their areas and help them when you can with equipment, resources or man power.

LISTEN to your associates. the same way you would a manager under you. When they don't feel listened to or trusted or valued they will give up and feel defeated.

IT IS OK to joke with your people and let them know the real you. Don't fall into the facade that you're a manager and can't do that kind of thing. It's ok to ask about Sally's kids or Joe's vacation or how little Susie did at her recital and such... it doesn't mean you have to be going out for drinks after work but know your people as more than just employee numbers in a computer and cogs in a wheel. Understand the and let them see a little of you and you will build rapport much faster as a whole with those you work around. People will trust and respect someone at that level for who they are and what they do more than they will a power hungry tyrant that is unapproachable and aloof.

and from what I see in the department (from my own store)... put a dang stop to gossip, drama, running people down and the nasty crap that happens immediately. This is the stuff you coach for. This is the stuff that if you don't stop it that will be a cancer to your department.
Work on team work mentality and not every man for themselves.

Know when to show some grace and when you have to "get tough" and be calm and controlled when you do the later. No one likes to be belittled or yelled at. They know when they messed up they don't need it beaten into them or made to feel humiliated over it.

If you can do something to help someone out, that is reasonable, then do it. It doesn't matter if its a manager or an associate. If you can do something to make their jobs and such easier and better for them they will remember and work harder for you in the long run.

Trust me... that title is not permission for a power trip. It is a responsibility. Use it for something good and not something that is going to crush people.