How does a man know how to use it? It being his sexuality and his body in this response.
I've always thought and since learned, that you have to look and listen. A woman will tell you by the way she moves what she wants and whether you are doing the right thing. As other posters have said, think of what you do. If a woman is almost touching you in the right spot what do you do? You move yourself so she is touching the right spot. Women are no different. Some women are vocal, work with that. You'll know when you are doing the right thing.
That and variety. Don't just sit there, if she stops moving or making noise move on. Again, would you like it if a woman did the same thing forever?
Of course you'll also know when not to move on. There is that magic time when you know she's headed over the top and unless you are teasing and prolonging things stay put.
For me it's all about pleasing my partner. If that works I'm a happy boy
