I haven't ever fished that lake, but camped up there a couple years ago. I hear there are some good crappie in that lake. If it were me and no ice, If you are on the bank I'd use a slip bobber so that you are just over the brush and move real slow. In a boat I'd start out jigging right over the brush.
If they are in there, you should be able to get them to bite.
Let us know how it goes.