For example swiping left or right between open apps. The iPad has every app open in full screen, and I always have that on my 11-inch MacBook Air too. So doing a swipe to switch between apps has become an habit for me. Or the swipe up to see all open apps in a long row, easy to get an overview and switch to the app you need.
I feel right at home no matter which device I use. That's what I call great user experience.