You look for rocks(bouldersize) or wrecks. They are not built for open water so they like to hide, come out and feed and go back in. The reason for stout tackle! Once you feel the "THUMP", you gotta set the hook( i use 3/0 Owner Cutting Point hooks), reel them quick and get them away from the structure. If you set the hook and the fish gets to his hole, you can sometimes wait him out or force him out. Most used bait is crabs(fiddlers if you can find or afford them
) but they'll eat clams stripps or sandworms as well. Rigs vary but high/low is basic. Sometimes they stroll out to patches of coconut size rocks in shallower water. Tide needs to be moving really good at all times. Good idea to double anchor( bow and stern) so you don't swing. Don't be surprized when you can't catch a fish and the guy 20 feet from you is bailing them left and right!