Stay as vertical as you can. Spinner rigs with bottom bouncers or in-line, weighting systems are a good choice to start. Use a 6 to 7 foot medium-heavy rod and 10 or 12 pound test monofilament line. But, colored blades like chartreuse and orange also work well. Experiment and let the walleyes tell you what they want.
Nightcrawlers are a great choice for live bait when fishing with spinner rigs.
For weight, try 2 ouncers that will keep the spinner close to the boat and let you know when the bottom changes from soft to hard. Drift if the wind allows, troll slowly if it does not. Circle the rock pile to check the base where mud meets rock. The transition area is often rich in food choices for forage fish, which draws the walleyes in. Then, move up the sides and over the top.