I found two objects which I think is intuitive design.
First one is the the pinch to zoom function designed by Apple using its touch screen. It’s so intuitive for people to pinch to zoom in. I clearly remembered when I first time to use iPod touch, watching the photos, without knowing any instructions to use it, I just naturally pinch to zoom because it’s a touch screen and support multi-touch. Also many of the iOS functions have intuitive designs.
Second one is one of the function of Moto 360. You just raise your hand, and the screen will light up and watch plate will appear on the screen. This feature quite fit the human’s habits. And it’s also natural, and easy.