Flash Mob

One of the most amazing you can see in many places is a flash mob. The first i saw one was here in Wroclaw, and the truth that really impressed me. The flash mob is an event that occurs esporodicamente by a group of people thatsupposedly no one knows who will perform, although it is known in advance where theyoccur, which are dressed in civilian clothes and suddenly begin to make a dancetogether, and takes up together as people, and eventually form a group of many peopledoing the same choreography for several minutes. If you want to see some sample flash mob viewable on YouTube, of course. So there are a few important rules: 1. they can`t go as a group they must not be noticed, no one can find out that somethng is about to happen. 2. after the event they have to disappear;) so everyone has to go other way!