Yep if he's gobbling on the ground and has hens, you will likely have to convince the hens to come your way and the toms will follow, but that doesn't usually work... If a lone bird is gobbling, try to set up within 100 yd or so depending on the type of cover you have to move without getting busted. Call to him a few times sparingly so he knows you are there. If he keeps gobbling and doesn't drift away, he will probably come in to check you out at some point. Curiosity gets the better of a hot lone gobbler
Good luck, my first hunt didn't kill, but I have started to figure it out since then. Wait till your first bird is on the ground. Nothing like it.