The way I fish the blue fox vibrex spinner in a stream or a river, is I look for structure, like a big boulder, a fallen tree, a spot with a pool. Look at the way the flow of water is going! And look for structure in those areas. Trout will use theses places as an ambush site for bait fish,worms or any kind of food that the current will bring there way. That way they don't have to waist a lot of energy chasing down food! And also pools will hold fish because the water will be deeper there and also cooler, and as well a spot to get food that flows by or swims above them! As for using the spinners, vary your retrieve from fast to slow, follow the shore line, fish the edge of the chanal, around any spot where fish may hold! Also trout like to hide in undercut banks. As for colors, if it's sunny use gold, silver, bright colors, if it's cloudy use reds, oranges, chartreuse colors. Also a technique that I like to use is fan casting, start from your left side and work your way across to your right side forming a fan pattern in the area your fishing! But most of all look for structure, trees overhanging the bank, along logs and so forth!
Hope this helps?