Tap
> Gallery 
.Select the video you want to watch.
Touch to adjust
video volume.
Touch and hold
to rewind in 3 second increments.
/ 
Touch to pause/resume video playback.
Touch and hold
to fast-forward in 3 second increments.
/ 
Touch to lock/unlock the screen.
Touch to use QSlide
for the Videos app.
Tap to share your
video using the SmartShare function.
Tap to access additional
options.