When you start the game you will see a 'slot machine'. Tap the 'Spin' button on the right of the machine. As the pictures spin, a simile will appear at the bottom of the machine. Decide which picture finishes the simile and tap it (if you are lucky you will get two or three of the correct picture). Then click 'Spin' again. There are three levels in this game but you will need to get all the similes correct in each level before you can move to the next one.