I would go with what most everyone else has said...try to call in the hens.
I try to one up them, they yelp six times, I yelp seven, and a little more aggressively. You want to get her all fired up.
Another method to try, and one that worked for me twice last season, is to just go crazy on the call. Look at it this way, if you dont try it youll never know if it works.
I was stationed along a stone wall, with no gobbling going on all morning. A raccoon came up along the wall, and noticed I looked a little odd for a tree stump. I started to cackle and cutt my head off, and I tell you, this little coon was going nuts. He starting climbing up my legs, swatting at my gun barrel, and just standing on his hind legs trying to figure out what the hell I was. Not thinking there were any birds around, I kept it up, calling like a madman, doing things that I dont normally do in the woods.
All of a sudden, two gobbles made me jump (raccoon ran for his life at this point, straight up a tree) and I quickly repositioned, and within two minutes two gobblers came in, both in full strut, pulling in three hens each behind them.
Bad thing about more turkeys, especially hens, is there are more eyes. One spotted me bringing my gun up, and they all booked out of there....sigh. The raccoon was laughing at me from the tree, I swear I saw a grin on his face.
Anyway...
Moral of the story is when all else fails, DONT BE AFRAID TO TRY SOMETHING NEW. Had I been ready, I would have killed one of those birds..