Pretty easy. There is a system pioneered by the late, great Steve Irwin.
You sneak up on the animal, wrestle it to the ground, then stick your thumb up it's butt. At this point, you can accurately gauge an animal's bravery from its bravado.
ha ha ha ha epic
Congratulations, you've won your dick's weight in sweets! Decode the message in the above post to find out how to claim your tic-tac