Grab a QUARTER and place your hand on a FLAT surface. Put the quarter next to your index (pointer) finger. Now, angle your phone OVERHEAD, ensuring the quarter makes a perfect circle, and snap! Don't forget the flash! :)
FOR PHOTO SUBMISSIONS
THUMB
Make a fist and move your thumb to rest on top of the fist. (Or place it on a FLAT surface edge) Then, repeat step one!
Let's go over what NOT to do...
Improper Photo #1
The photo was taken at an angle, therefore, making the quarter seem as if it's not a perfect circle.