First, start examining the bolts that hold the license plate so you can observe what tools you will need: a flathead screwdriver, Phillips head screwdriver, a wrench, etc. Make sure the tool is also the correct size and start unscrewing the license plate bolts by slowly turning them to the left, in a series of counterclockwise moves.
Be careful where you put the bolts you’ve removed as they are easy to lose. Remove the 2 top bolts or the 2 lower bolts first. Hold the license plate (or ask somebody to help you) as when you remove the other bolts, the item won’t fall and scratch the paint on the motorcycle.
Once you’ve removed all of the bolts, you can remove the license plate as well. It’s not a complicated affair and you can do it easily without having to be some sort of expert in this domain.