I love jig fishing, find a hump or reef and bump all over it.
I especially like to fish these spots when it is not too windy.
I use a spincast, when I cast I will watch my line fall to the surface, as the jig sinks I watch where the line enters the water, it appears to be being sucked down and racing back towards the rod tip. It is very obvious, when the line goes limp you have reached bottom. From that point I just sneak the jig along the bottom with the occasional twitch. I love to feel the the jig working through rocks and staying in touch with the bottom. If I feel resistance I apply slightly more pressure, with enough experience you will feel a little 'give' or not. If it feels mushy I set the hook. Sometimes it doesn't pan out as a fish and you just wedged your jig in a bunch of rocks.
This brings up the next technique to master, trying to slingshot the jig from between the rocks.