To be successful in street photography practice makes perfect and also helps to get over any nerves. To improve your chances of getting a great shot take lots of average / good shots, and be prolific in your output. With digital cameras you can take as many shots as you like, and work a scene to get the best composition and layering of elements. In fact don’t just take one shot and move on, take a least half a dozen. The more you do this the more instinctive it will become. Your will also become more intuitive in your quest for a great image. Comments and Questions, as always welcome.