If you haven’t already, take a few minutes to step through Apple’s iOS 8 what’s new web site. Once you make your way through that main page, click on the icons at the top of the page to explore changes that came with Messages, Photos, etc., and topics like Continuity, Family Sharing, and QuickType.

iOS 8 is an incredibly rich upgrade. Stepping through these pages will give you a sense of the major new capabilities so you can take advantage of them.