know (one's) way about

1. To be familiar with a particular place or area and be able to navigate around it. I don't know my way about the building yet, so can you direct me to the cafeteria?

2. To know and understand how something works. Thanks to smartphones, you don't need to know your way about a professional camera to take a fine picture these days.

know your way aˈbout/aˈround (something)

be familiar with a place, with how things are done etc.; be experienced: I’d used the library before, so I knew my way around and found the book quite quickly.