Short answer: get a tape of what Hodgson said/did, and do the polar opposite.
Long answers:
1) It's your team, your club, your responsibility. If you think the players are rubbish, get a different job.
Good start: "I've watched these players, and I'm excited to be working with them!"
Bad start: "The previous manager was a prat and the players are all a waste of space"
2) It's liverpool. You are expected to win, even if you don't believe it yet.
Good comments: "Man City are a proud team, with a good history. But we're feeling confident".
Bad comments: "I hope we don't lose 6-1!"
3) We don't get on so well with ManU, so sucking up to their manager isn't a great idea. Ditto Everton etc. Have a drink with their managers? sure. But just don't give us the gory details...
4) Don't refer to interviewers by name on camera. Looks like you're trying to suck up to them.
5) Don't insult the fans. Those words will be recorded on the internet and come back to haunt you.
etc.