when you place a good sized clump of hair on the hook shank, you've already: Flicked out the floaty's **thats a technical term** and you've cut it at a slight angle. (so your hair is good to go) You place the hair on your hook shank, secure it (again medium tension, whats medium tension, medium tension is dropping your bobbin and watching what happens to the wrap) Ok, so now you got this massive clump of hair(which softens or kills action) on your hook shank, pinch it a LIL bit! Dont pinch it hard, take your index finger and tap it to your thumb.. yep
pinch it that tight. With each pinch, more of a squeeze really, you'll see and feel the hair move around the hook shank.