The hold button is your friend.

电话的挂机键是你的朋友。

youdao

Even the button itself is refreshed: you can now hold down the button while drawing gestures on the screen to access features like the Quick Command tool (we'll cover this later) and a few other navigational abilities.

ENGADGET: Samsung Galaxy Note II review Mobile

Push and hold the WPS button on the side of the PTV3000 unit for more than 5 seconds.

ENGADGET: Netgear PTV3000 updated, supports Miracast-ready Android devices

You can hold the button and do a long press on the screen to capture a screenshot, do two taps to bring up the S Memo application to make a note.

ENGADGET: AT&T Galaxy Note review Mobile