How to whistle with your fingers
For beginners who need a hands-free call that cuts through noise at the park or on a trail.
Fingers pin the tongue back to create a narrow channel while lips seal the sides. Air forced through that channel vibrates into a loud whistle that can reach across a street. Gear: clean hands and a quiet corner for practice.

Step 01
WASH both hands with soap under the tap while you count to eight out loud.

Step 02
JOIN your two index fingertips together into a sharp point held three inches from your lips.







