How can I use only keyboard in FPC?

Hi, I'm unity newbie.

i have 1 question.

now I'm using FPC(first person controller). and I want to just only use keyboard for character movement and mouse-cursor just using for camera rotation.

but in my project, when I direct somewhere to use mouse-cursor, capsule character follow that cursor. So, I want to make the project like below.

Keyboard(WASD or up, down, left, right button): character movement Mouse: just camera rotation.

How can I do..?

Thanks.