You Have to practice using them. I always bend mine when I get them to have a slight curve on the top so it fits the roof of your mouth. Push it against the roof of your mouth with the thick part of your your tongue. Don't blow like you would a duck call, force the air between the roof of your mouth and the call . After a few minutes of practice you will get the hang of it. Go into the garage or somewhere out of the house or your wife will be unhappy.