The hardest part for me was finding that certain spot in my mouth where I could control the air flow the best. I put mine halfway between the front and the corner on my left side. I have a buddy who puts his in the corner and another who runs his in the front. After you pick the spot, the rest will come. I start by making a cluck, then proceeded to yelps, keekee's, and purrs. The purr was the hardest by far for me to learn. They are the most natural sounding call in my opinion, and not a lot of fellers use them which makes it even better!