How do you respond to family members who enjoy gossiping about people who aren’t in the room at family functions?

I noticed some family members who seem to enjoy gossiping about other people in their life when those said people aren’t even in the room and I noticed their gossiping usually always almost comes to an awkward point.
Is there anyone else who’s felt the same about gossiping family members and how do you deal with it when they make conversations awkward?
How do you respond to family members who enjoy gossiping about people who aren’t in the room at family functions?
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