You must be targetting whatever you want to face (so if you are using focus targetting, you have to actually have your focus target targeted). Have 'click to move' enabled under options. Hit your 'interact with target button'. If your target is something with which you can interact, you will move to that target. So in this case just hit a movement key real quick after you hit your interact key to keep your hunter from running up and meleeing.

Just to clarify - this is a way to make your hunter face whatever it is you want him to face. This isn't some magical spin around key. You must have something targeted, and you must hit your interact with target keybind, and you must have 'click to move' enabled in your game options.