Android

1. How do I take a screenshot on an Android phone?
Press and hold
Volume Down
 +
Power
for 1 to 3 seconds
 = Capture the full screen and save it as a photo.
2. Where do I find the screenshot?

In your phone’s Photos App.

If you don't have the Photos app, you are probably running an older Android version. Open your phone's Gallery app -> Album view -> Screenshots folder.