Go to Google's home search page. Click on "Images" in the upper-left corner.
Type a term into the search field to find pictures. Press "Enter" or click on the "Search" button.
Scroll through the search variations if you'd like something more specific. Otherwise, scroll through the photos and find the one you want.
Click the right mouse button of the photo on the Google Images results, and then go to "Save As." Selecting the "Copy Image" tab instead will allow you to paste the image into a document. Left-click on the photo to see the full size image and the website where it is located.
Highlight the destination folder, and click the "Save" tab to save the photo to a place on your computer. You might use My Photos in Windows or create a new folder. Paste the picture into a document by right-clicking and selecting "Paste" if you've directly copied it.