I have always had better luck with a suspending bait instead of a floater. When the water gets colder I will let it sit for up to 10 seconds. A lot times when you start a super slow retrieve again after a pause the walleye just has it in his mouth. I use hj14s and smithwick toques. When I haven't caught anything yet I will change technique on every cast. Slow steady, slow with pauses, slow with little jerks. Let the fish tell you. Pay attention to anyone who has already caught a fish and mimic their retrieve.