Using a diaphram is kinda tuff if you have not used them alot .. The main thing is finding one that fits your mouth properly and your not choking on it ...Get some video on calling and be sure they are ones that actually have turkey sounds on it ..Buy a single reed to start out with because they are easy to make clear sounds out of ..and most importantly use the air from your lungs do not blow threw the call.. get the air going and slowly drop your tounge to start making sounds ...when teaching kids start them out as young as possible because they learn quick and usually end up sounding just like a real turkey ..