At this point, when you unhook them, they will tend to sink like a stone. Simply hold them in the water for a few moments, and they'll let you know when they are ready to go. Trolling is my favorite approach to either species, but casting at them can also be a fun, albeit a frustrating endeavor. Hard baits like small Rapalas, Bombers and Thunderstiks work well. Colors should resemble the resident baits, which in our locale translates to mostly sand eels and silversides.
Small spoons are also an option, especially when casting.
Whatever you're using, the trick is to minimize hardware like snap swivels. Tie directly to hard baits with long, light leaders. While swivels are a necessary evil, put as much distance as you can between them and your offering. Bury the hook with soft baits when trolling and add no weight. The bait popping to the surface as it rides in and out of the chop seems to ring the dinner bell.