Click on to the persons profile and right at the bottom of the page you have a section that says Network on the side. You'll have the "unfollow" option right under that.
Just click on thr name, then look close to the bottom left of the page and click unfollow
thanks, still feeling my way around this place so mistakes are bound to occur.
Welcome np, any other question just ask, someone will try and help
Go to their profile then click unfollow on the bottom left.