To save an image in an email or in the browser, long press on the image and a menu will appear allowing you to save it.
For images inside text messages, you might have to press and hold on the message itself, rather than the image.
If you are running low on phone memory, you can look for your largest applications to uninstall.
Go to Settings - Application manager. Then swipe from right to left and select Running.
From here you can see which applications are taking up the most memory and close them.
To remove numbers from the call log that you don't want anyone seeing, then open your Call Log.
This will normally be found on your Apps list or you can also go to your Dialler and find Logs or Call Logs.
Then press and hold on the contact you want to remove. When the Menu appears, press Delete.
To copy photos to your computer, plug the device in via a USB cable. (you might have to install your device's software or drivers first).
Then locate the new drive on your PC. Go to the /DCIM/Camera/ folder Your photos will be stored there.
This may vary slightly between devices, however once you have opened the device's drive, you can do a quick search for .jpg files which will show you where your photos are located.
If you are browsing and have zoomed in or out and the column you're reading doesn't fit the screen properly, you can pinch to zoom in. Then double tap on the column. The column will then be reformatted to fit the screen width.
If you don't want to have to unlock your screen every time you take your device out of standby then go to Settings - Lock screen - Screen lock and change the settings there.
If you want to resize your homescreen widgets, then press and hold on a widget for 2 seconds. If the widget is resizable, then an outline will appear around the widget. Simply drag the sides to resize the widget.
If the outline doesn't appear or you can't drag the lines, then the widget is a fixed sized widget.
To share or upload a video to services like Facebook or YouTube, simply go to your Video App and long press on a video.
Then select Share via. From here you will be given options to share the video with various services.
Normally when Apps are installed, an icon is automatically placed on your homescreens.
This can be annoying for users who want to keep their homescreens clutter-free.
To stop then, go to Google Play - Menu Key - Settings. Then untick Auto-add Widgets.
If you're worried about your sensitive data falling into the wrong hands then Jelly Bean has a great new encryption feature that scrambles every pieces of content on your device.
Go to Settings - Security settings - Encrypt device or Encrypt external SD card.