Open the mouth.jpg. Click on the Rectangle Select Tool and select the mouth for your creation.
The Rectangle and Oval Select Tools can be used to select perfect squares and circles. Simply hold down the CTRL key while dragging the cursor from one corner to the other.
Copy the selection and paste the mouth as a new image.
Use the Magic Wand Tool to select the mouth. It is wise to change the green background colour or else it will be included in the selection.
|Select the Eyedropper tool. Position the eyedropper near where you would like to place the mouth. Click the left mouse button to change the foreground colour.|
|Select the Fill Tool button and set its tolerance to 100. Position the Fill Tool on the green background and click the left mouse button. This replaces all of the green colour with brown.|