8. When you gossip about a friend behind their back.
You know who you are. You wait for that one friend to go to the bathroom so that you and your other friends can start talking about how annoying she is. Many guys said it was a red flag when they heard girls talking behind someone’s back who they seemed to be best friends with. They echoed this about their guy friends too. Anyone who speaks behind someone’s back can’t be trusted. In conclusion, speaking badly of someone isn’t a good look.