1. I ran the Emulator up. Read this page for the setup.
2. I connected my Nexus 10 to my computer via USB cable and open the Android Wear Preview app then set it's notification access as they say on the Get Start page
3. Then I connect the emulator and Nexus 10 by running below command on the terminal.
adb -d forward tcp:5601 tcp:5601
4.Finally, the Emulator displayed my Nexus 10's notification. Wow !!
That is for today. See you next time :)