How do you handle people talking behind you’re back?

Recently, I had this one group of friends talk about me behind my back in a negative way.

The crazy part is, I have barely or not even interacted with any of them. The only time I have with one, she gave me extreme attitude like she was better than me. (PS her friend told me what she said, as we are really close) Most of them would be two face and act nice.

However, the group is known for being judgemental and very prideful because they think they are smarter than everyone else.

I know I shouldn’t get personal with this, but I just can’t help it. I’m going to have to interact with these individuals until I graduate.

Is there any tips on how you, yourself, normally brush these gossips off? Like as in, not hold a grudge on them to the point where you don’t actually start a fight/drama?

(Repost because my grammar sucked on the first one)