For instance, if you want to add a border to your picture, just click the Picture Border drop-down button, where you can change the type of border you want, the colors, or the line thickness.

You can take this even a step further and add glowing effects or even 3D effects to your pictures by using the Picture Effects drop-down button. 

What’s great about this feature is that as you move your mouse over each option, it will automatically show you a preview in the document.

As you can see I got a bit carried away with these options!  My advice is to experiment and have fun!