OKAY:
Just spell the letters "O" and "K."
Many people use a slight forward movement.
OKAY:
This sign refers to something having gone through an approval process and having received an "OK."
Memory tip: Think of someone stamping the letters OK onto a document.
Note: Often that "O" letter in "OK" is mutated to form the "O" just using just use the index, middle, and thumb.
APPROVE:
This sign follows the same concept as the "OK" stamp of approval.
Notes: