Don't look at them at all. If you keep ignoring they'll get mad at you for not giving them attention. Trust me, when someone keeps talking about you and you pay them no attention it makes you feel good and makes them feel angry. It works everytime.
Stay Strong!! I know what your going through. They are just trying to get a reaction from you and if u...just for example...attempt suicide or cry...maybe yell even look a lil mad! But if you blow it off, then they dont get the satisfaction! They will stop trust me! Again stay strong!