Ask a Manager at Ask a Manager has some good advice and you can ask questions.

The fact that you're asking how to be a good manager is a good sign. It's more than what a lot of managers do.

Express your appreciation for your employees,. Give them specifics, like "You led that meeting really well and effectively dealt with the bully in the room," not just "good job". That's too vague and doesn't give a clue about what behavior the person should repeat.

Deal with issues soon after they happen;. If the person knows they did something wrong, and you don't deal with it immediately, then they might think it's no big deal. Or they might not even realize they did something wrong. Or they might not remember they did something wrong if it happened a year ago.

My manager friend likes to give a compliment sandwich. Start by explaining something your employee does well, address something that went wrong and ask them to help solve the problem. Always recognize what the employee does well and they'll be more motivated.