The crown jewel of Apple’s fantastic retail stores is the Genius Bar.

Apple’s “Geniuses” can tackle almost any problem you throw at them.

But most people don’t realize that Geniuses can do more than troubleshoot technical problems. They have a great deal of power to act on their own.

We spoke with a former Apple Store employee who worked at a Genius Bar on mobile devices, but was not himself a “genius” (by Apple’s standards anyway).

He passed along some helpful tips for customers to get the most out of their trip to the Genius Bar.