Fly the Team Iceshanty Flag! Iceshanty Proshop
I usually take a walk to visit some other fishermen. Being far enough away that I can just see a flag usually does the trick, especially if it's a slippery or slushy walk back. If that doesn't work, I walk in circles mumbling, "Come on, just one fish, that's all I want, just one fish".
My favorite technique when the bite gets slow is to drink beers and plink at the cans with the an old daisy lever
Have a buddy smoke a fish whistle. Works everytime.