The hand that holds the call is the ON hand. The other will be the OFF hand. The OFF hand will be used to add INFLECTION and to add tone to the call.
Tongue placement is important: Place the tip of the tongue against the back of your lower front teeth and leave it there. The only part of the tongue that needs to move up or down is the middle.
Place the call to your mouth as if you were drinking from a bottle. Make sure you have a tight seal to keep air from escaping. Blow straight though the call, bringing air up from the diaphragm. DO NOT puff out your cheeks. Keep blowing through the call to get a consistent sound. Next, increase the air pressure slightly while bringing the MIDDLE of the tongue up to break the note off SHARPLY.
A reference word such as WHOO-IT can be used.
The Cluck is the same note as the Honk ... just shorter. Bring the tongue up quicker for a sharp cluck. The reference word WHIT can be used for the Cluck. While using your hand to add inflection to each note, simply, and SLIGHTLY open and close the OFF HAND (the hand not holding the call) to change the pitch of the note. This may take some practice.
The double cluck is a series of clucks made very sharply, and by changing the pitch of each cluck with your Off hand. whit-WHIT- whit-WHIT- whit- WHIT is one reference word to doing the simple double cluck. Practice makes perfect on this call ... take your time.
Simply say da-da-da-da or who-who-who while growling into the calls with the deepest voice you can make. This is a sound that is used by geese on the ground while feeding ... it is a confidence call to birds in the air.