Some Android smartphones have a dedicated camera shutter button, or at least a button combination that takes a photo. Usually, it's on the top of edge of the phone, and it works well when you're trying to hang onto the phone and snap a shot at the same time. If your only camera button is onscreen, as in the case of the Samsung Galaxy S III (S3), you can actually tell the camera when to take a photo instead of tapping the button.
To do this you'll need to enable voice commands for apps, which can be done in just a few simple steps. Here's how to get started:
Step 1: Press the Menu button on your device and then tap Settings. Scroll down to and tap on Language and input.
Step 2: Tap the slider next to Voice cmd for apps so that it displays a green On label.
Step 3: Open the Camera app; when you're ready to take a photo, just say "Shoot."
The camera will focus automatically and take the photo for you -- hands free! "Shoot" isn't the only word that will trigger the shutter; you can also use "picture," "photo," "cheese," and evidently some other random words will work too, but not all of them. I tried "candy" and it worked, too!
What else do you use voice commands for on your Samsung Galaxy S3? Let us know in the comments!