calls can be all over the map. Russ kind of hit on it. i carry a mess of calls but i have my "go -to". walking i like pot, trumpet or wingbone calls. if you have not run a wingbone, you really are missing out! btw i make them and they really do work! just another tool. hit me up if you are interested~! with pots, wet weather can be tuff to keep functional, glass works wet but in those situations i run the bone or trumpet period... in close mouth clucks hands free is key.
turkeys are funny, you can educate a wise old tom and have him run for cover if you do it wrong or you can sound like a sick bird, even making buddies laugh at the calling and they come running like its the sweetest voice they have ever heard...tone, cadance makes a big difference... you can sound like a hen, a jake or a tom with these....each may have a place depending on response. Live hens may pull your tom away, jakes may trigger a older tom to come dominate or if he has been harassed by a group of jakes he may get quiet and not come in...you can experiment and find your favorite songs to play!
start quiet, even when walking, bird could be right under your feet and you could blow them out of the county! once you have a tom responding play hard to get! remember what you are doing is exactly opposite of nature.. girls come to the big boys... its brings feelings to strike a tom and get him to reply to your calls ...pow over and over but that really defeats your tactics.. he wants you to come to him and your telling him "im coming"... let him know where you are and play hard to get.. let him fire off a few times before you respond... he knows EXACTLY what acorn your sitting on trust me! the trick is just enough calling to keep his interest, knowing when to say when.....
locating calls is a different topic. woodpecker, owl, crow, coyote all work to strike a shock gobble giving up his position for you to make your plan. even a car door slam can get that job done if you park close enough.