In addition to enhancing OS X and IOS, the latest OS X system Yosemite provides a number of convenient sharing features, one of which is inviting each other to share the screen. Yosemite users can invite iMessages friends to share their MAC screens via the Info app. This feature is similar to an earlier version of the ichat app, except that ichat requires an AIM account, and Yosemite only needs an apple ID.
You can click "More" from the top-right corner of the Info Chat window, click on the Screen Sharing button next to the FaceTime icon, and you can invite the other person to share your screen or ask them to share his screen.
When you receive an invitation, you can choose to accept it, or reject it, or even block it.
When the screen share is connected, the screen sharing icon is displayed in the status bar, and there are several options for clicking on the icon: let the other person control my screen, disable audio chat, pause screen sharing, and end screen sharing. The actual test found that the screen sharing process is still very lag, occasionally suddenly disconnect, which may also be related to the network environment. In addition, the "control of the other side of the screen" is delayed to make you crazy, make a click to wait for half a minute to react.