My clicker has finally arrived in the post, below some pictures, this is how a clicker looks like:-) it is small and you use it by simply pressing it. This is used to train dogs by positive reinforcement (some psychology :-) B. F. Skinner (March 20, 1904 – August 18, 1990) was an American psychologist, behaviorist, author, inventor, and social philosopher and he first described this type of conditioning (source Wikipedia). Ok, but now leaving psychology apart, how to use it? The website Wiki-How will tell us http://www.wikihow.com/Clicker-Train-Your-Dog on this website you will find training instructions with some pictures. Training your dog can be fun! It takes some effort for sure, but if you hope that your dog's manners will improve without your effort, then you are not correct.