I am now learning to cut hair and i am training for becoming a haircutter .but first i need to learn the basics of the trade and how the tools function,i want to be ahead in my class when it comes to know about all the hair cutting tools and for begginers and i want to start with Thinning Shears or scissors which i believe is a very important and fundamental hair tool that is used all the time.i want to know that how do you use Thinning Shears and in what kind of hair do you use Thinning Shears?also i want a description on what these Thinning Shears look like?