PC
Press the Windows logo key
+PrtScn. The file is saved to the Screenshots folder in your Pictures folder. You can also us the Snipping Tool which is available in all versions of Windows Vista, 7, and 8 except the Starter and Basic editions.
Mac
To take a screenshot with your Mac, Command + Shift + 3 and then release all keys to captuer the whole screen, or press Command + Shift + 4 and press down and drag the mouse over the area you'd like to capture.
iPhone/iPad
To take a screenshot with your iPhone or iPod Touch, press and hold the sleep/wake button and then click the Home button.
Android
Take a Screenshot with Android 4.0 (Ice Cream Sandwich) just press and hold the Volume Down and Power buttons at the same time.
Volume 1, Chapter 34, Scene 168 - Construction Site
(1st Clue) Lever
(2nd Clue) Irene
Apple
Aries
Arrow
Atlas
Awning
Backpack
Balloon
Banner
Basket
Bell
Boots
Brush
Bucket
Car
Carabiner
Cat
Chain
Concrete Mixer
Crack
Crate
Crowbar
Crown
Danger Sign
Drainpipe
Drill
Easel
Extinguisher
Flag
Footprints
Fountain
Gas Lamp
Gear
Gloves
Goggles
Grapes
Guitar
Hammer
Heart
Helmet
Hole
Infinity
Kite
Ladder
Letter A
Lizard
Loudspeaker
Lyre
Magnet
Matches
Music Stand
Nest
Number Twenty-Eight
Oil Can
Paint Tray
Pigeon
Pinecone
Ribbon
Rug
Scarf
Shell
Shield
Shovel
Sieve
Silhouette
Spade
Sparrow
Spotlight
Stool
String Of Lights
Sun
Tape Measure
Vest
Weather Vane
Whistle
Wrench