Whiteboards are everywhere. Every company has them. You might even have one at home, in the kitchen, or in the office. They're super handy for making quick notes that you can easily rub out and start over.
At the end of the day, using a whiteboard is a pretty simple thing to do, and given your skills and experience as a developer, it's safe to assume that you have some exposure to good (and bad) uses of whiteboards. So, we're not going over-egg it here. However, there are a few useful tips and practical techniques, which you can easily learn to become a "whiteboard rockstar!"
Remember your goal as a manager: to enable your team to do their best work with requirements, analysis, design, development, test, and more.
So, in this context, being a whiteboard rockstar isn't about drawing the prettiest pictures...